2018 Seismology of the Americas Meeting Program

Seismology of the Americas 14–17 MAY 2018 • MIAMI, FLORIDA

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14–17 MAY 2018 MIAMI, FLORIDACONTENTS 2 Message from SSA President Andy Michael 3 Message from LACSC President Victor A. Huérfano 4 Meeting at a Glance All information in 5 Sponsors this program is current 6 Meeting Details 7 Hyatt Regency Miami Map as of 16 April 2018. 8 Opening Ceremony and Welcome Reception 9 Exhibitors For scheduling changes, additions and updates, download our event app at guidebook.com/g/seismology, passphrase: earthquake2018. 10 Pre- and Post-Meeting Workshops Share your meeting tweets 13 SSA Annual Luncheon and Awards Ceremony and photos: #SSA2018 15 Lightning Talks 18 Travel Grant Award Winners 21 William B. Joyner Memorial Lecture 22 SRL: Call for Nominations 23 Code of Conduct 24 Technical Sessions 38 Overview of Technical Program 42 Poster Sessions 44 Technical Program THANK YOU FOR BRINGING US TOGETHER Seismology of the Americas Program Committee Carol S. Prentice, Co-Chair  United States Geological Survey Elizabeth A. Vanacore, Co-Chair University of Puerto Rico at Mayagüez Sergio Barrientos University of Chile Christa G. von Hillebrandt-Andrade  National Oceanic and Atmospheric Administration (NOAA) Xyoli Pérez-Campos National Autonomous University of Mexico Mario C. Ruiz Instituto Geofisico Escuela Politecnica Nacional, Ecuador 1

SEISMOLOGY OF THE AMERICAS Welcome to Seismology of the Americas 2018, a joint conference of the Latin American and Caribbean Seismological Commission (LACSC) and the Seismological Society of America (SSA). The SSA Annual Meeting has always been a venue for sharing research with colleagues while building professional contacts and friendships. This year’s meeting is truly special with its focus on building ties throughout the hemisphere.The SSA community has been a global one from media, hazards assessment, ShakeMap and after-the very start. Issue 1 of BSSA in 1911 covered shock forecasting while enjoying the receptions,seismology in the U.S., Costa Rica and Chile Lightning Talks and Pint and Poster sessions.while noting that Professor G. F. Marsters of Peruhad been elected to membership as our ranks Although we are gathered in Miami, our thoughtsalso spread to Mexico, Costa Rica, Jamaica, are with Puerto Rico and those still recoveringBrazil and Canada. The joint nature of our from Hurricanes Irma and Maria. We are espe-meeting this year and Seismological Research cially grateful for the efforts of the Puerto RicanLetters’ Focus Section on geophysical networks members of the Program Committee who madein Latin America reaffirm our commitment to this meeting a success despite the venue move,seismology and earthquake science throughout their personal recovery and need to rebuild theirthe Americas. We thank the members of LACSC, seismic network.led by President Victor A. Huérfano of theUniversity of Puerto Rico in Mayagüez (UPRM), The most important part of our meetings—for their partnership. We hope that they will find whether you’re a first-time or a longtimean additional home for their work in SSA. attendee—is your input. Our society remains dynamic and relevant due to your feedback andThis year’s conference received more than 800 participation. We are honored to have you here.abstracts representing the broad fields of seis-mology, earthquake science and engineering, Andy Michaelmaking it one of our largest meetings ever. SSA President, 2017–2018Special thanks go to our meeting sponsors,Program Co-chairs Elizabeth Vanacore (UPRM)and Carol Prentice (U.S. Geological Survey) andthe Program Committee for curating a fantasticset of presentations. We hope that you will takeadvantage of the workshops on publishing, social2

14–17 MAY 2018 MIAMI, FLORIDAWelcome to the third international conference ofthe Latin American and Caribbean SeismologicalCommission (LACSC), this year held jointly with theSeismological Society of America (SSA).  I am delighted to see our two communities cometogether this week, and I know that our members sharemy excitement. We are looking forward to forging newfriendships and professional collaborations with somany scientists and engineers who share our passionfor seismology.For those of you who aren’t familiar with our and young scientists. The organization of theorganization, allow me to introduce you to who biannual IASPEI Regional Assembly is one ofwe are and what we do. LACSC is a member LACSC’s main tasks. commission of the International Association ofSeismology and Physics of the Earth’s Interior As so many of you know, our assembly was ini-(IASPEI). As an Association of the International tially planned to take place in Puerto Rico with theUnion of Geodesy and Geophysics (IUGG), IASPEI overall goal to remember the 1918 Mona Canyonis a powerful stimulus for international and inter- earthquake and tsunami that severely impacteddisciplinary cooperation with all of the relevant Puerto Rico. The recent hurricanes in Puerto Rico,geophysical sciences — cooperation recognized however, prompted the meeting’s move to Miami.as essential for optimal progress in understanding I am grateful to all who helped with the logisticsthe Earth as a complex physical-chemical system of this move, and I am especially touched by(IASPEI.org). SSA’s assistance with our students’ travel.LACSC was proposed during a Seismology It has been an honor to serve as president of theSymposium in Lima, Peru, in September 2012, commission for the 2017-2018 term. If you areand formally approved by the IASPEI Council in its not already a member, we hope you will considerGeneral Assembly in Gothenburg, Sweden, in July joining LACSC, whether as a graduate student,2013. Two other LACSC assemblies have been researcher, professional or a senior scientist.organized: the first in Bogotá, Colombia, July 2014,and the second in San Jose, Costa Rica, June Finally, I want to extend my appreciation to my2016. This history may be a brief one, but the future team, the Executive Committee board and theimpact of LACSC is arguably beyond measure. Council of National Representatives. Enjoy the 2018 assembly! It is my great hope that it notA number of commissions, sub-commissions, only meets, but exceeds all of your expectations.committees and working groups carry outour scientific work. Together, they help us Victor A. Huérfanoaccomplish the LACSC mission: to promote LACSC President, 2017–2018the science of seismology in Latin America andthe Caribbean by encouraging research studies,extending and enhancing scientific cooperationand facilitating training of graduate students 3

SEISMOLOGY OF THE AMERICASMEETING AT A GLANCEMonday / 14th Tuesday / 15th Wednesday / 16th Thursday / 17th Friday / 18th7:30 AM–3:30 PM 7:30–8:30 AM 7–8:15 AM 7:30–8:30 AM 8:30 AM–12:30 PMBoard of Directors Morning Coffee Student and Early- Morning Coffee Workshop:Meeting Riverfront Central Career Mentoring Riverfront Central AftershockOrchid C Breakfast Forecasting 7:30 AM–5 PM Riverfront North 7:30 AM–5 PM Post-MeetingNoon–4 PM Workshop Registration 7:30–8:30 AM Registration MonroeWorkshop: Getting Riverfront Central Riverfront CentralPublished— Morning Coffee 8:30 AM–5 PMWriting Papers, 8:30 AM–5:30 PM Riverfront Central 8:30 AM–5 PMWorking Workshop:with Editors, Technical Sessions 7:30 AM–5 PM Technical Sessions ShakeMapResponding Related Research,to Reviews 9:45–10:45 AM Registration 9:45–10:45 AM Development,Tuttle Riverfront Central Operations and Posters and Break Posters and Break ApplicationsNoon–2 PM Riverfront Central 8:30 AM–5:30 PM Riverfront Central TuttleLACSC Board Noon–2 PM Technical Sessions Noon–1:15 PMMeetingOrchid AB SSA Annual 9:45–10:45 AM Luncheon Luncheon and Riverfront North1–4 PM Awards Ceremony Posters and Break Riverfront North Riverfront Central 2:45–3:45 PMWorkshop:Probabilistic 3:30–4:15 PM 9:50–10:30 AM Pint and PosterSeismic Hazards Riverfront SouthAssessment: Posters and Break GovernmentSubduction Zone Riverfront Central Relations Update 5:30 PMSources and Hibiscus BBorders 5:30–6 PM EveningBrickell Noon–2 PM Celebration Pint and Poster Cruise3–7:30 PM Riverfront South Public Policy Riverwalk LuncheonRegistration 6–7 PM Riverfront NorthRiverfront Central Lightning Talks 3:30–4:15 PM5–7:30 PM Riverfront North Pint and PosterOpening 6 PM Riverfront SouthCeremonyand Welcome Special 5:30–6:30 PMReception Interest Group:Riverfront North Articulating the Joyner Lectureand Central Mission of State Riverfront North and Regional7:30–9 PM Earthquake 6:30–8 PM CentersWorkshop: Tuttle LACSC/SSASocial Media: ReceptionNot Just 7–9 PM Upper & LowerKid Stuff! PromenadeTuttle Early-Career and Student 8–9 PM4 Reception Upper Promenade LACSC Public General Assembly Brickell 8–9:30 PM Women in Seismology Reception Japengo

14–17 MAY 2018 MIAMI, FLORIDASPONSORSSSA Annual Luncheon Sponsor;Opening Ceremony and Welcome Reception Co-Sponsor:Opening Ceremony and WelcomeReception Co-Sponsor:Opening Ceremony and Welcome Reception Co-Sponsor:Women in Seismology Reception andPublic Policy Luncheon Sponsor:Student and Early-Career Mentoring Breakfast Sponsor: 5

SEISMOLOGY OF THE AMERICASWELCOME TO MIAMI Mentoring BreakfastA FEW THINGS WORTH NOTING Students and early-career attendees: bring your career-related questions to our seasoned seismologyWi-Fi Information pros at a special Wednesday morning breakfastNetwork for all lower level rooms: Hyatt_Meetings (7–8:15 AM) offered just for you. RSVP required.Password: ssa2018Riverfront Hall network: James L. Knight CenterPassword: ssa2018Coffee Women in Seismology Reception Join us for an hour of networking at theCoffee is available on Tuesday, Wednesday Women in Seismology reception Wednesdayand Thursday from 7:30–8:30 AM in Riverfront evening 8–9:30 PM. RSVP is required.Central. Breakfast options in the hotel includethe Riverwalk Cafe’s breakfast buffet (~$22) and Pint and Postercontinental breakfast (~$15.50), Starbucks in We want you to have plenty of presentation timethe lobby and a stand with on-the-go breakfast with your colleagues, so enjoy Pint and Posteroptions available for purchase just outside time every day!Riverfront Hall.Seismology of the Americas: LACSC-SSA Thursday Evening Celebration CruiseThere’s an App for That Be ready to board our yacht at 5:30 PM andOur app keeps you connected to colleagues enjoy a 90-minute cruise along the Biscayne Bay.and the latest meeting information. Download See page 20 for more details.it at guidebook.com/g/seismology.Passphrase: earthquake2018 Code of Conduct All attendees are expected to comply with SSA’sCheck Your Teeth for Spinach Code of Conduct. See page 23 for full details.By entering our joint meeting, all attendees consent Questions or concerns? Call 408-647-5811 orto being photographed or recorded on video by email SSA Executive Director Nan Broadbent atSSA. These photos and/or videos may be used [email protected] future Society and LACSC communications topromote the organizations. Support Student Travel SSA and LACSC are grateful to all who supportedLightning Talks this year’s travel grants and helped bring our stu-Speed through our series of five-minute slide dents to Miami. Now SSA needs your help for nextpresentations on Tuesday night 6–7 PM. Lightning year! Visit the registration desk to make a donationtalks are fast and fun! to SSA’s 2019 student travel grants and receive a seismology T-shirt (and good karma)!Seismology PosterDecorate your home, office or classroom with Need a Receipt?artwork that shows off your scientific passion! SSA members can print a copy of their meetingPick up a free seismology poster at the SSA registration receipt by logging in to the Members’booth on Wednesday during the morning break or Area at seismosoc.org. All other attendees canPint and Poster session. Created by Hatch Show receive receipts within two business days byPrint, one of America’s oldest working print shops! emailing their full name to [email protected]

14–17 MAY 2018 MIAMI, FLORIDAHYATT REGENCY MIAMISSA Annual Meeting 201923–26 April SEATTLE, WASHINGTON Co-chaired by Michael Bostock, University of British Colombia, and Joan Gomberg, U.S. Geological Survey 7

SEISMOLOGY OF THE AMERICASOPENING CEREMONY AND WELCOME RECEPTIONMONDAY, 14 MAY, 5–7:30 PM, RIVERFRONT NORTH, RIVERFRONT CENTEREnjoy remarks from our presidents, Peter Shearer (SSA) and Victor A. Huérfano (LACSC). This specialwelcome will include Elizabeth Vanacore (University of Puerto Rico at Mayagüez) on the impact ofHurricanes Irma and Maria from the perspective of the Puerto Rico Seismic Network, and a tributeto a seismology legend courtesy of Leandro Rodríguez, CERESIS director.ALBERTO GIESECKE MATTO, Peruvian geophysicist Acosha and Cojupand one of the most outstanding specialists in seismology lagoons. More than 10and disaster mitigation in South America, passed away million m3 of mudAugust 20, 2016, at the age of 98. He was the first wiped out part ofdirector and president of the Geophysical Institute of Huaraz city causingPeru (1947–1982); director of the Regional Center of the death of 5,000Seismology for South America—CERESIS (1968–2005); people. He survived bypresident of the Seismic Risk Advisory Committee climbing a rock moreof UNESCO and UNDRO; member of the Ad Hoc than 20 meters.Group and the Scientific Committee of the InternationalDecade of the United Nations for Natural Disaster Giesecke’s bond withReduction; vice-president of the Pan American Institute geophysics began on the Magneticof Geography and History (PAIGH) and president of Observatory in Huancayo, one of the most importantits Geophysical Commission and editor on the PAIGH observatories in the world. From the moment he arrivedGeophysical Journal. He was also a fellow of the Third at Huancayo in January 1942, Giesecke stopped being anWorld Academy of Sciences. electrical engineer and considered himself a geophysicist, starting his six-year career in geomagnetism with the He was born in Cusco on February 28, 1918. His father, Carnegie Institution and leaving when the observatoryDr. Albert Giesecke, Rector of San Antonio Abad del Cusco was transferred to the government of Peru in 1948.National University and Director General of Educationof Peru, encouraged him to pursue his education in In 1966, Giesecke helped create CERESIS, which hethe United States. So Alberto Jr. traveled there alone directed for almost 40 years (1968-2005). He promotedbefore turning 12 years old, completing elementary and integration among regional researchers as well as projectshigh school in Philadelphia before studying electrical aimed at the identification of volcano-tectonic hazards. Atengineering at Rensselaer Polytechnic Institute. the same time, he fostered the development of seismology in countries like Brazil along with a cooperative spirit He returned to Peru at the age of 19, taking a job as an throughout the international community of scientists andelectrical engineer at Westinghouse Co., which acquainted engineers. His efforts assisted American and Europeanhim with the mines throughout Peru. Two years later, seismology groups with carrying out their research in thehe joined the Scientific Expedition to Hispano-America Andean region.financed by the Swedish Axel Wenner Gren to studythe native tribes in the region of Madre de Dios and the Working to mitigate the effects of earthquakes in theAmazon and explore roads and villages around Machu region, Giesecke coined the phrase, “we must live in pacificPicchu. coexistence with earthquakes,” which became a paradigm. Giesecke had his first contact with a natural disaster For these many scientific contributions and his service toduring his work for the construction of a hydroelectric our community, we recognize Alberto Giesecke Matto asplant in the Pato Canyon in the Callejón de Huaylas. the great Ambassador of Earth Sciences in Latin America.He was inside the canyon on December 13, 1941, when a Leandro Rodríguezglacier detached from the Cordillera Blanca, overflooding Director of CERESIS8

14–17 MAY 2018 MIAMI, FLORIDAEXHIBITORS BOOTH #17 BOOTH #19 BOOTH #1/2 BOOTH #14 BOOTH #9 BOOTH #4/5BOOTH #15/16 BOOTH #12/13 BOOTH #8 BOOTH #10/11 BOOTH #3 ® BOOTH #15/16 BOOTH #7 BOOTH #6 9

SEISMOLOGY OF THE AMERICASPRE- AND POST-MEETING WORKSHOPSLearn how to use social media to your advantage, find out what’sshaking with ShakeMap and more! RSVPs are required for all work-shops as space is limited. Please inquire at the registration desk.Workshops are free unless otherwise noted.Getting Published—Writing Papers, Working with Editors, Responding to ReviewsMONDAY, 14 MAY, NOON–4 PM, TUTTLELearn what makes an excellent peer-reviewed paper and how to handle constructive—and not soconstructive—reviews from those who know—editors at Science, SRL and BSSA. This SSA workshopis geared toward students and early-career seismologists but open to all Annual Meeting attendees.Bring your questions and enjoy lunch on SSA!Instructors: Roland Bürgmann of University of California, Berkeley, BSSA associate editor emeritus;John Ebel of Boston College, founding SRL editor-in-chief; and Brent Grocholski of Science, editor ofall seismology papers for the journal.Free but RSVP required.Probabilistic Seismic Hazards Assessment: Subduction Zone Sources and BordersMONDAY, 14 MAY, 1–4 PM, BRICKELLExploring both technical and political issues, this workshop starts with an examination of how to defineand parameterize subduction zone sources, including the new Slab2 model of global subduction zones,before moving on to issues that arise when attempting to standardize seismic hazard assessmentsacross national boundaries.Instructors: Gavin Hayes, Hugo Yepes and Julio Garcia-Pelaez. Hayes of the U.S. Geological Survey inGolden, Colorado, is the lead author of the Slab2 model and a 2012 recipient of the Presidential EarlyCareer Award for Scientists and Engineers. Yepes, director of the Instituto Geofísico at the NationalPolytechnic School in Quito, Ecuador, is responsible for seismic hazard assessment in Ecuador and the2010 recipient of SSA’s Frank Press Award for Public Service. Garcia-Pelaez led national seismic hazardassessments in Cuba and surrounding areas, worked on European projects with the National Instituteof Oceanography and Experimental Geophysics and is now a Senior Hazard Scientist with the GlobalEarthquake Model focused on regional projects in Latin America.Fee required for participation.10

14–17 MAY 2018 MIAMI, FLORIDASocial Media: Not Just Kid Stuff!MONDAY, 14 MAY, 7:30–9 PM, TUTTLEIn addition to the opportunities that social media platforms now provide to stay in touch with familyand friends, and share cat pictures with the world, social media has become increasingly important fornot only science communication, but also scientific research. Please join us for a hands-on seminarthat will introduce and provide an opportunity to practice with several popular social media platforms.Everyone is welcome, regardless of career status: whether you are new to social media or familiar withplatforms but interested to learn more about how they can be useful in your professional lives. Socialmedia veterans Susan Hough, Emily Wolin and Julian Lozos will lead a 90-minute workshop that willgive you the know-how to use the Annual Meeting as a productive practice ground for learning how toengage effectively on social media, whether Twitter, Facebook, Instagram or the tool of your choosing.Hands-on work and one-to-one training will help you develop your skills.Free but RSVP required.ShakeMap Post-Meeting WorkshopFRIDAY, 18 MAY, 8:30 AM–5 PM, TUTTLEHosted by the U. S. Geological Survey, this workshop for ShakeMap operators, researchers and coreusers will focus on the science and software underpinning ShakeMap Version 4, a major re-engineeringof the entire ShakeMap system. Time will be set aside for discussion, feedback, strategizing andoperations questions. Workshop attendees are also encouraged to share their ShakeMap-relatedexamples, research, operations and needs at a related Special Session: ShakeMap-Related Research,Development, Operations and Applications.Instructors: Eric Thompson, David Wald and Bruce Worden of the U.S. Geological SurveyFree but RSVP is required.Aftershock Forecasting Post-Meeting WorkshopFRIDAY, 18 MAY, 8:30 AM–12:30 PM, MONROESoftware for making both spatial and temporal forecasts during aftershock sequences will bereleased by the U.S. Geological Survey during this workshop. The session will cover the statistics ofaftershock behavior used in making these forecasts and the applications of aftershock forecasts inpast earthquakes. Participants will install, test and learn how to run this software and are encouragedto bring a laptop with Java 8 (JRE) installed. This project, partially funded by a grant from the U.S.Office of Foreign Disaster Assistance, is aimed at providing countries with the means of making theirown forecasts.Instructors: Nicholas van der Elst, Jeanne Hardebeck, Sara McBride, Andrew Michaeland Morgan Page of the U. S. Geological Survey.Free but RSVP required. 11

SEISMOLOGY OF THE AMERICAS THE SEISMOLOGICAL SOCIETY OF AMERICA JOURNALS ADVANCING EARTHQUAKE SCIENCE WORLDWIDE Bulletin of the Seismological Society of America The premier journal of advanced research in earthquake seismology Since 1911, BSSA has served the scientific community as the leading source of peer-reviewed research in seismology and related disciplines. BSSA focuses on the various aspects of seismology, including investi- gations of specific earthquakes, theoretical and observational studies of seismic waves, methods for determining the structure of the Earth and the dynamics of the earthquake source, seismometry, earth- quake geology and geodesy, earthquake hazard and risk estimation, and seismotectonics and earthquake engineering. SPECIAL ISSUES COMING SOON 2016 Kaikoura Earthquake, Landslides and Tsunami July 2018 Fifty Years after the 1967 Koyna Earthquake: Progress in our Understanding of Reservoir Triggered Seismicity November 2018 Seismological Research Letters A journal with a broad perspective SRL is a peer-reviewed forum for communication among seismologists, engineers and earthquake hazards-policy professionals. SRL includes regular articles that are generally informal, informational and/or appeal to readers across a wide range of disciplines, focus sections about recent earth- quakes and contemporary topics, opinions, special columns (Electronic Seismologist, Historic Seismologist, Eduquakes, Comunicating Science and Data Mine) and Seismological Society of America news. FOCUS SECTIONS COMING SOON • Collaboratory for the Study of Earthquake Predictability: New Results and Future Directions July 2018 • Geophone Array Seismology September 2018 • North Korea’s September 2017 Nuclear Test and Its Aftermath November 2018 CALL FOR PAPERS Focus Section on the 6 February 2018 M6.4 Hualien, Taiwan Earthquake Submission Deadline: 1 August 2018 Published Issue: SRL January–February 2019 Submit manuscripts via SRL Editorial Manager at srl.edmgr.com using the article type “Hualien Focus Section.” More information is available at seismosoc.org/publications/calls-papers.12

14–17 MAY 2018 MIAMI, FLORIDAx SSA ANNUAL LUNCHEON AND x AWARDS CEREMONY TUESDAY, 15 MAY, NOON–2 PM CO-CHAIRED BYAndy Michael, SSA Board Past President • Peter Shearer, SSA Board President SPONSORED BYHasting Micro-Seismic Consulting, Inc. SSA CELEBRATES George Plafker2017 Harry Fielding Reid Medal Annemarie Baltay Keith Knudsen2017 Charles F. Richter Early Career Award 2017 Distinguished Service to SSA Award Lori Dengler2017 Frank Press Public Service AwardResearch Scientists – Earthquake HazardEntry and Senior Level PositionsFM Global, Research Division, Norwood, Massachusetts USAFM Global is a leading property insurer of the world’s largest businesses, providing more than one-third ofFORTUNE 1,000-size companies with engineering-based risk management and property insurance solutions.We have openings for planning and conducting research on the hazards and effects of earthquakes, andsubsequent property losses.Positions require a PhD degree, and a research record in seismology or geology addressing seismic hazardissues, such as seismic source characterization and seismicity models, ground motions, site response analyses,and PSHA. It is desirable to have a solid background in probability and statistics, GIS skills, and familiarity withOpenQuake.Interested candidates, please send your resume to [email protected],or through FM Global Careers atjobs.fmglobalcareers.com/careers/research-jobs FM Global is an Equal Opportunity Employer. ©2018 FM Global. All rights reserved. 13

SEISMOLOGY OF THE AMERICAS Government Relations Update from D.C. WEDNESDAY, 16 MAY, 9:50–10:30 AM, HIBISCUS B Join Elizabeth Duffy, SSA’s government relations liaison in Washington, D.C., for an interactive discussion on the current legislative climate in Washington, D.C., including an update on pending and proposed legislation. Elizabeth Duffy, president of the Federal Affairs Office,  Washington, D.C,. and government affairs coordinator for SSA, brings more than 20 years of business, politics and advocacy experience representing associations and organizations before the U.S. Congress, including developing and implementing advocacy strategies and working to educate and inform members of Congress, federal agencies and the Administration. Interested in the Politics of Science? Apply today for the 2018 Geoscience Congressional Visits Day Currently enrolled students are invited to apply for a travel grant to attend the Geoscience Congressional Visits Day (Geo-CVD) in Washington, D.C., 12–13 September 2018. Entering its 11th year, Geo-CVD brings geoscientists, geoscience researchers, students, professionals, educators and executives to Washington D.C. to both raise visibility and increase support for the geosciences. It puts scientists at the intersection of science and policy—now more important than ever before! Travel grant recipients will learn about conducting congressional visits and meet with members of Congress or congressional staff to discuss the importance of geoscience research and education. For more information, visit SSA’s website: seismosoc.org/us-government-relations/geocvd. Deadline to apply: 6 July 201814

14–17 MAY 2018 MIAMI, FLORIDALIGHTNING TALKSTUESDAY, 15 MAY, 6–7 PM, RIVERFRONT NORTHSpeed meets seismology in this series of five-minute talksEarthquake-Induced Gravity Changes Heralding Similar Seismicity at Turrialba and Poas,the Arrival of the Direct Seismic Waves Costa Rica: What Can It Tell Us? Martin Vallée ([email protected]) Rebecca Salvage ([email protected])After an earthquake, the earliest deformation signals Seismicity in volcanic settings is thought to be relatedare not expected to be carried by the fastest (P) elastic to a number of physical processes at depth, includingwaves but by the speed-of-light changes of the gravi- the migration of magmatic fluids and fracturing of thetational field. The observations of these weak signals, conduit itself. In addition to this, seismicity can also beand their full understanding, would provide a new data generated by surface processes such as pyroclastictype with a strong potential for a rapid estimate of flows and rockfall events. The extreme variety ofthe earthquake magnitude. We show here that gravity seismic signals generated in volcanic settings is aperturbations are particularly well observed with broad- reflection of the number of different processes and theband seismometers at distances between 1000 and great structural heterogeneities found in this context.2000 kilometers from the source of the 2011, moment I will present an introduction to seismicity in volcanicmagnitude 9.1, Tohoku earthquake. We can accurately settings from an Observatory perspective including:model them by a new formalism, taking into account the types of seismicity observed; the ways in which weboth the gravity changes and the gravity-induced characterise seismic events; how seismicity can help usmotion. These prompt elasto-gravity signals open the distinguish different ongoing processes at depth; andwindow for minute time-scale magnitude determination forecasting volcanic eruptions using seismicity. I willfor great earthquakes, in particular in places where focus upon seismicity at active volcanoes in Costa Ricagood-quality broadband seismometers are installed (Turrialba, Poas, Rincon de la Vieja, Irazu and Arenal),in front of the megathrust area, at distances ranging and how it is at the forefront of monitoring and deter-from a few hundreds to a few thousands of kilometers. mining changes in volcanic activity, in particular in realIn North America, the seismic monitoring of both the time and during crisis events.Cascadia and Alaska subduction zones would benefitfrom the early detection of such gravity changes. Heliotrope: A DIY Free Flying Infrasound Sensor NetworkVolcanic Lightning and Thunder Daniel C. Bowman ([email protected])Matthew Haney ([email protected]) The focus of this talk: the world’s first free flying infra-Detection of volcanic lightning on global lightning sound network in the stratosphere, with sensors builtlocation networks is an emerging technique used for from open source Arduino hardware and the balloonsreal-time alerts of eruptive activity at volcanoes. It’s constructed from materials purchased at the localespecially useful for volcanoes in remote regions and hardware storecontains information on the dynamics of volcanicplumes. Thunder from volcanic lightning, or volcanicthunder, has only recently been observed for the firsttime during the 2016-17 eruption of Bogoslof Volcano,Alaska. The ability to observe volcanic thunder offersa new window into the physical process of volcaniclightning generation. This Lightning Talk on lightningitself (in addition to thunder) from volcanoes focuseson volcanic lightning from eruptions for non-experts,with exciting visual displays of the phenomenon and adiscussion of the new volcanic thunder observations. 15

SEISMOLOGY OF THE AMERICASGeodesy and Seismogeodesy for Hazards broadband seismometers (including ocean bottomin the Americas seismometers in the Beaufort Sea and offshore British Columbia) and Global Navigation Satellite SystemLinda Rowan ([email protected]) and Beth Bartel (GNSS) receivers. Additional instrumentation and([email protected]) measurements at selected locations could include meteorological and atmospheric gas sensors, boreholeSignificant portions of the west coasts of the Americas temperature and moisture sensors, riometers andare bordered by major subduction zones that can magnetometers, relative and absolute gravity measure-produce large earthquakes, volcanic unrest and ments. Education-outreach- communication programsdevastating tsunamis. The Caribbean is the focus of will be integral to CCArray. While some instruments maycomplex plate tectonics and complex weather patterns only be in place for up to three years, some techniques,and this complexity can lead to significant natural such as GNSS monitoring of crustal motions, requirehazards affecting people, places and property. UNAVCO longer operational times. The intention is to continuewith support from NSF and in partnership with many operation of some stations to densify long-term mon-governments and institutions in the Americas operates itoring across Canada. CCArray represents the initialand maintains a Network of the Americas (NOTA) - a component of an envisaged future pan-Canadian Earthgeodetic, seismogeodetic and meteorologic network observation network called Earth-system Observingspanning North, Central and South America plus the Network - Réseau d’Observation du Système TerrestrECaribbean. Research has shown that NOTA can help (EON-ROSE).with severe weather forecasts, hurricane tracking,earthquake early warning, tsunami early warning and Updates on the Finite-Fault Rupture Detectormonitoring volcanic unrest or landslides. Here we will Algorithm (Finder v.2) discuss efforts to integrate geodetic and seismogeo-detic observations into hazard preparedness, warning John F. Clinton ([email protected]) and response. There is a critical need to apply theinfrastructure, data and research to the appropriate The Finite-Fault Rupture Detector (FinDer) algorithmand authoritative systems for forecasts, warning and determines a real-time line-source model that is bestresponse for damaging hazards in different countries suited to explain current spatial ground-motion patternsand through international collaborations. observed at any given time in a dense seismic network.Drilling Through the Seismogenic Zone of Performance of the Seismic Early WarningLarge Megathrust Earthquakes: an on-land System during the Mexico September EarthquakesOpportunity in Osa Peninsula, Costa Rica Gerardo Suarez ([email protected]) Marino Protti ([email protected]) The Mexican seismic early warning system was the firstA great opportunity exists in Osa peninsula, Costa Rica, to begin issuing open and public warnings. In September,to drill and instrument a locked segment of the Middle Mexico suffered two large magnitude earthquakes thatAmerica Subduction Zone, where the plate interface are relatively unusual from a tectonic point of view.beneath the peninsula is only 4 to 8 km deep. The warning time available in Mexico for these two events was very different. The 8 September M8.2 eventThe Canadian Cordillera Array: Towards a offered almost two minutes of warning to Mexico City.Multidisciplinary Geoscience Program for Canada In contrast, strong motion shaking of the destructive 19 September event (M7.1) arrived almost simultaneously toAllison Bent ([email protected]) the emission of the alert. These two sharply contrasting events offer a useful lesson to future efforts to installThe Canadian Cordillera Array (CCArray) is an initiative seismic early warning systems. I believe that futureto install a Cordilleran-scale open-data network with seismic early warning systems should learn from thisthe goal of holistically examining the Earth system from experience. The lessons are both technical, in termsthe core to the magnetosphere. Building on the scien- the algorithms used and the station spacing and thetific momentum of previous Earth systems research resulting time that is necessary to issue an early warning.and data acquisition initiatives in North America (e.g. Secondly, the experience of these two large earthquakesLithoprobe (1984 to 2004) and EarthScope (2004 to underscores the need to accompany the technical~2018 or later)), the vision for CCArray is to install a developments with a social and governmental programsnetwork of multidisciplinary telemetered observatories. and plans to make use of the seismic early warnings.The core CCArray network is envisaged to include16

14–17 MAY 2018 MIAMI, FLORIDASmall Town Geoscientist, Scientific Outreach The Geological Society of Colombia together with otherfor Better Communities in Colombia student and professional associations are carrying out a project to put an earth scientist in every townAlbert Aguilar ([email protected]) in Colombia so as to help advance risk mitigation not only associated to earthquakes but also to landslides,What do the Armero, Chinchiná and Florencia tragedies flooding and climate change in order to prevent thosehave in common? We had the geological knowledge to catastrophes from happening again. We show theprevent most of the losses. The Armenia 1999, Páez major scientific and political challenges of providing1994 and Popayán 1983 earthquakes although small in communities the geological, geophysical and seismo-magnitude (6.1 Mw, 6.8 Mw and 5.5 Mw respectively) logical knowledge in a country where science seems toare the greatest and most destructive in the recent be considered secondary by the government.history of Colombia producing thousands of casualties.World-Class Editors=World-Class JournalsBehind every issue of the Bulletin of the Seismological Society of America (BSSA) andSeismological Research Letters (SRL) are dedicated teams of editorial volunteers who ensurethat the review process is prompt, thorough and fair. The Seismological Society of Americais grateful to these professionals for devoting their time and talents to our journals.BSSA Thank you! SRLEditor-in-Chief Nicola Litchfield  Editor-in-Chief Diego Melgar Thomas L. Pratt Kim B. Olsen  Zhigang Peng Adrien OthAssociate Editors Stefano Parolai  Associate Editors Arben Pitarka Allison Bent  Adrian Rodriguez-Marek  Brendan CrowellFabian Bonilla Danijel Schorlemmer  Susan E. HoughMichel Bouchon  Peter Stafford Erol KalkanRichard Briggs  Mark Stirling  Xyoli Pérez-CamposThomas Brocher  Cezar I. Trifu  Eric M. ThompsonRaúl R. Castro  Nicholas van der Elst Eric Chael  Ivan G. Wong  Column EditorsMartin C. Chapman  Cleat P. Zeiler Fabrice Cotton  Martin C. ChapmanLuis Angel Dalguer  John EbelJohn Douglas  Alan KafkaMatthew Gerstenberger  Maurice LamontagneHiroshi Kawase  Kim OlsenYann Klinger  Taka’aki Taira Huajian Yao 17

SEISMOLOGY OF THE AMERICASSSA STUDENT TRAVEL WISHES GRANTEDThe sense of community has never been stronger at the Seismological Society of America (SSA).Once again, SSA members and friends gave generously to the Society’s Kanamori Fund, General Fundand Student Travel Fund to help our students travel to the Annual Meeting. But when disaster struckPuerto Rico in the form of Hurricanes Irma and Maria, our community truly went the extra mile. TheSociety is grateful to all who contributed to an additional fundraising effort to bring our Puerto Ricanstudents to Miami this year. Thank you for your support of the travel grant recipients listed below,each of whom received free registration and a cash stipend for travel expenses. We are delighted tocongratulate and welcome our 2018 travel grant recipients!ESC/SSA Travel Grant Student Travel GrantRodrigo Contreras Arratia, Institute of Geophysics Claudia Aristizábal, ISTerre – Universite Grenoble Alpes, and Tectonics, University of Leeds, Leeds, England Grenoble, FranceInternational Travel Grant Lirca Feliciano-Centeno, University of Puerto Rico at Mayagüez, Mayagüez, Puerto Rico, USAAlbert Aguilar, Universidad Nacional de Colombia, Bogotá, Colombia Laney Hart, University of Wisconsin-Madison, Madison, Wisconsin, USAMarcella Cilia, University of Birmingham, Birmingham, England Jacob Kukovica, The University of Western Ontario, London, Ontario, CanadaGarmalia Mentor-William, GeoHazards International, Haiti  Pamela Moyer, University of New Hampshire, Durham, New Hampshire, USAMaria Mesimeri, Aristotle University of Thessaloniki, Thessaloniki, Greece Jessica Schobelock, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USARebecca Salvage, Observatorio Vulcanológico y Sismológico de Costa Rica, Universidad Nacional, Vianca Severino Rivas, University of Puerto Rico at Heredia, Costa Rica Mayagüez, Mayagüez, Puerto Rico, USAHema Sharma, Western University, London, Kahoko Takahashi, Yokohama City University, Ontario, Canada Yokohama, JapanHubert Zal, Victoria University of Wellington, Sin-Mei Wu, University of Utah, Salt Lake City, Utah, USA Wellington, New Zealand Shuo Yang, University of Notre Dame, Notre Dame, Indiana, USA Jefferson Yarce, University of Colorado Boulder, Boulder, Colorado, USA Lizhong Zhang, University of Bristol, Bristol, England18

14–17 MAY 2018 MIAMI, FLORIDACONGRATULATIONS, IASPEI/LACSC TRAVEL GRANT WINNERSThe Latin American and Caribbean Seismological Commission (LACSC) extends a very special welcometo our 2018 Travel Grant Winners. These grants assist Latin American and Caribbean students andearly-career scientists with both travel to our assembly and related lodging. We are grateful to theInternational Association of Seismology and Physics of the Earth’s Interior (IASPEI), the Association ofthe International Union of Geodesy and Geophysics (IUGG) and the Seismological Society of Americafor supporting these grants. Congratulations to our winners listed below. We are thrilled to have youwith us at this special joint conference. May your time here lead to new connections and learning thathelp you advance in your scientific careers!Students Early CareerAgostina Venerdini, Centro de Investigaciones de la Silvana Montoya-Noguera, Universidad EAFIT,Geósfera y la Biósfera (CONICET — Universidad Nacional Antioquia, Colombiade San Juan) and Departamento de Geofísica y Astronomía,Universidad Nacional de San Juan, San Juan, Argentina Juan Porras, Universidad de Costa Rica, San Pedro, Costa RicaFélix Rodríguez Cardozo, Universidad NacionalAutónoma de México, Mexico City, Mexico O’Leary Fernando Gonzalez Matos, National Centre for Seismological Research of Cuba, CubaMaría Reyes, Escuela Politecnica Nacional, Quito, Ecuador Gregory De Pascale, University of Chile, Santiago, ChileEdwin Castrillo, Universidad Nacional Autónoma deNicaragua-Managua, Managua, Nicaragua Lepolt Linkimer, Universidad de Costa Rica, San Pedro, Costa RicaFrancisco Pastan-Araya, Universidad Católica del Norte,Antofagasta, Chile María Laura Rosa, Departamento de Sismología, Facultad de Ciencias Astronómicas y Geofísicas,Esteban Chaves, University of California Santa Cruz and Universidad Nacional de La Plata, La Plata, ArgentinaOVSICORI-UNA, Costa Rica, California, USA Ana María Tobón López, Universidad de los Andes,Luciana Lopez, Instituto Nacional de Prevención Sismica, Bogotá, ColombiaSan Juan, ArgentinaAndrea García, Universidad Central del Ecuador,Quito, EcuadorDavid Naranjo, Universidad de Los Andes, Bogotá, ColombiaJulia Carolina Rivadeneyra Vera, Universidade de SãoPaulo, São Paulo, BrazilLuis Alberto Vazquez Aragon, Universidad NacionalAutonoma de Mexico, San Cristóbal Ecatepec, MexicoMario Arroyo Solórzano, Universidad de Costa Rica,San Pedro, Costa Rica 19

SEISMOLOGY OF THE AMERICAS Special Interest Group: Articulating the Mission of State and Regional Earthquake Centers TUESDAY, 15 MAY, 6–7 PM, TUTTLE We invite participation in this brief meeting from anyone interested in the capabilities and future directions of state and regional earthquake facilities. The meeting will build on the ideas and content of the technical session Regional Seismic Network Approaches and Stakeholder Collaborations. By identifying common themes across organizations, our goal is to help articulate the importance and common needs of these facilities. The exact outcomes will be determined by the attendees, but potential directions include summary publications, organized advocacy and frameworks for closer collaboration. While the emphasis of this meeting is on U.S. organizations, we welcome the experience and input of international colleagues. We encourage you to join us and lend your voice. Light refreshments will be served. Conveners: Michael West, Kristine Pankow, Margaret Hellweg and Aaron Velasco Public Policy Luncheon WEDNESDAY, 16 MAY, NOON–2 PM, RIVERFRONT NORTH Speaker Alejandro De La Campa, director of the Caribbean Area Division of the Federal Emergency Management Agency (FEMA), Region 2, joins our luncheon to share his wealth of expertise with FEMA before, during and after catastrophic events like Hurricanes Irma and Maria. His talk will touch on earthquake/tsunami resilience efforts, including the role of scientists, and include time for questions. Seismologists, Set Sail! THURSDAY, 17 MAY, 5:30 PM, RIVERWALK Join us for a LACSC-SSA celebration cruise along the Miami shoreline on Thursday evening. The Biscayne Lady, a 111-foot luxury yacht, will be waiting for you on the bay just outside the hotel. Mingle with colleagues and make new friends while you learn about the historical landmarks we pass. Be sure to purchase your ticket for the cruise at the registration desk. Photo: Biscayne Lady Yacht Charters20

14–17 MAY 2018 MIAMI, FLORIDAWILLIAM B. JOYNER MEMORIAL LECTURE:Seismic Landslide Assessments: Bridging theGap between Engineers and Earth ScientistsWEDNESDAY, 16 MAY, 5:30–6:30 PM, RIVERFRONT NORTHEllen M. RathjeUniversity of Texas at Austin Professor Ellen M.Rathje is the William B. Joyner Lecture Awardrecipient. Rathje is the Warren S. BellowsCentennial Professor in the Department of Civil,Architectural, and Environmental Engineeringand also a Senior Research Scientist at theBureau of Economic Geology at the Universityof Texas at Austin.Earthquake-induced landslides represent asignificant seismic hazard, as evidenced by recentearthquakes in Kaikoura, New Zealand, and Gorkha,Nepal, and proper planning/mitigation requires accurateevaluation of the potential for seismic landslides.Engineers often tackle this problem through a detailed Ellen M. Rathje at a surface rupture relatedevaluation of individual slopes and more recently have to New Zealand’s 2016 Kaikoura earthquake.introduced performance-based engineering (PBE) Courtesy Ellen M. Rathjeconcepts into the analysis. Recognizing the compounding effects of multiple landslides acrossan area, earth scientists often evaluate seismic landslides at a regional scale. This approachsacrifices details, but provides a broader assessment of the impacts of earthquake-inducedlandslides. This presentation will describe the integration of performance-based engineeringconcepts into regional-scale seismic landslide assessments. The basic PBE framework forseismic landslides will be introduced along with the modifications required to apply it at aregional scale. The application of the approach for a seismic landslide hazard map will bepresented. The use of seismic landslide inventories to validate regional landslide assessmentswill be discussed, along with advancements in developing seismic landslide inventories usingremote sensing techniques. Finally, research needs required to further advance regionalseismic landslide assessments will be presented.The William B. Joyner Memorial Lectures were established by SSA in cooperation with theEarthquake Engineering Research Institute. 21

SEISMOLOGY OF THE AMERICAS CALL FOR NOMINATIONS: Editor-in-Chief, Seismological Research Letters The Seismological Society of America (SSA) invites nominations for the next Editor-in-Chief of its peer-reviewed journal Seismological Research Letters (SRL).  Under the leadership of the current Editor-in-Chief, Zhigang Peng, SRL has remained one of the most  interesting and useful journals in seismology as he expanded the special focus sections and added the Data Mine and Communicating Science columns. Peng is stepping down in late 2019 due to other expanding professional responsibilities, and SSA seeks a new editor who will continue SRL’s excellence and history of innovation. The ideal Editor-in-Chief candidate will demonstrate a broad range of interests, excellent communication and organizational skills, strong editorial experience and the contacts across the international research community necessary to both shepherd articles and obtain solid reviews. This is a volunteer position with a modest annual honorarium.  About SRL Accessible by all SSA members and available in more than 1,000 academic, government and corporate institutions worldwide, SRL consists of peer-reviewed papers, columns and various categories of news in the field of seismology. The journal publishes six issues per year and includes guest-edited topical focus sections. Known for its speed to publication, its average time for first decision is less than 30 days and the submission to publication process is typically about five months. With an impact factor of 3.275, SRL is the highest-ranking journal with a sole focus on seismology.  About the Position  The Editor-in-Chief supervises the managing editor, deputy editors and associate editors; and ensures a peer-review process that it is effective, fair and timely. The duties of the role include screening submitted papers and assigning those suitable for SRL to appropriate associate editors/reviewers; making final decisions on acceptance or rejection of peer-reviewed papers; soliciting opinion pieces and reviewing articles; proposing special focus sections to the Publications Committee; and establishing journal policies/guidelines and regularly reviewing these with the managing editor and Publications Committee. As an ex-officio member of SSA’s Publications Committee, the Editor-in-Chief works with SSA’s staff, Executive Committee and Board of Directors to make policy decisions that affect the overall direction of SRL and have a financial impact on SSA. Nomination Process You are invited to direct your recommendations for the position to SSA Publication Committee Chair Doug Dreger, head of the Search Committee, at [email protected]. Please include a cover letter and CV of the potential candidate. Self-nominations are also welcome. To apply for the position, please email your CV to Dreger along with a letter that addresses your background and preparation for the role, your vision for SRL and your approach to management (delegation of work, process and review times).22

14–17 MAY 2018 MIAMI, FLORIDASSA CODE OF CONDUCTSSA is committed to fostering the exchange of scientific ideas by providing a safe, productive andwelcoming environment for all SSA sponsored meeting participants, including attendees, staff,volunteers and vendors. We value the participation of every member of the community and wantall participants to have an enjoyable and fulfilling experience.All participants at SSA meetings are expected to be considerate and collaborative, communicatingopenly with respect for others, and critiquing ideas rather than individuals. Behavior that isacceptable to one person may not be acceptable to another, so use discretion to be sure thatrespect is communicated.Unacceptable BehaviorExamples of unacceptable behavior include, but are not limited to:• Physical or verbal abuse of any kind.• Threatening or stalking any participant.• Making inappropriate comments whether verbal or digital related to gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, religion (or lack thereof), national origin, or other legally protected group status or characteristics.• Inappropriate use of nudity and/or sexual images or language in public spaces or in presentations.• Harassment intended in a joking manner still constitutes unacceptable behavior.• Retaliation for reporting harassment is also a violation of this Code of Conduct, as is reporting an incident in bad faith.Reporting Unacceptable BehaviorAny participant experiencing or witnessing behavior that at any time in their judgment constitutes animmediate or serious threat to public safety is advised to contact emergency services immediately (forhotel security, dial 0 from any house phone; or 911) and to notify on-site venue security and SSA staff.If you are the subject of unacceptable behavior or have witnessed any such behavior, you are encouragedto notify an SSA staff member, call 408-647-5811 and write the Executive Director Nan Broadbent byemailing [email protected]. Writing down the details of the incident is also recommended.Requests for confidentiality will be honored to the extent possible.ConsequencesSSA staff (or their designee) or security may take any action deemed necessary and appropriate forany unacceptable behavior, including but not limited to that described above. Possible actions includeremoval of a participant from the meeting, without refund. Suspension or termination of membershipin SSA, denial to participate in future SSA events or meetings or other action(s) may be taken in SSA’ssole discretion, depending on the severity of the unacceptable behavior.SSA is committed to handling all situations to the best of its ability. However, this Code of Conduct isinformational and is not a contract. 23

SEISMOLOGY OF THE AMERICASTECHNICAL SESSIONS This session covers many engineering aspects of both events. Topics include, but are not limited to, strong ground3D/4D Seismic Imaging and Their Interpretation motion observations and networks, macroseismic intensities,for Seismic Hazard Assessment broadband ground motion simulations, site effects in theThanks to the recent development of imaging and monitoring Mexico City Basin and other urban areas, soil-structure andtechniques, we can obtain much higher spatial resolution site-city interactions, building codes and their implications inof subsurface structures and/or time-lapse changes of them. similar seismic prone regions together with hazard and riskIn previous years, imaging and monitoring techniques have management issues.developed rapidly due to the advent of high-density networks,new modeling techniques and unprecedented computation Session Chairs: Emel Seyhan ([email protected]),capacities. In addition to using them for interpreting subsurface Jorge Aguirre ([email protected]),geology and mechanics, such 3D/4D structural information is Leonardo Ramírez-Guzmán ([email protected]).useful for modeling and interpreting high-frequency seismicwaves or understanding the dynamic behaviors of structures, Adaptation of New Technologies and Methods toboth of which are important for seismic hazard assessment. Drive New Discoveries in Seismology and Geodesy In recent years, advancements in seismology and geodesy have In this session, we would like to cover both theoretical been made possible by innovative adaptation of new methodsand methodological aspects as well as novel approaches for and technology from other fields. Improved earthquakesolving common practical problems for 3D/4D imaging and detection and ground motion characterization have beenmonitoring. We welcome contributions for the interpretation achieved by using consumer MEMS accelerometers, consumerof obtained structural information for seismic hazard GPS chips, wireless nodal systems and other new sensorassessment such as ground motion prediction, more accurate technology that enable dense sensor networks. Deep learning,estimation of earthquake magnitude and moment tensor fingerprinting and linkage methods originally developed forand understanding the near-surface nonlinear effects. We Internet search engines and image recognition can substantiallyfurther encourage abstracts focusing on multiscale imaging improve our ability to detect and categorize seismic events,applications which involve novel processing such as higher- including earthquakes and low frequency earthquakes. Inorder correlations, double beamforming, multi-dimensional this session, we encourage submissions on any approach thatdeconvolution, nonlinear optimization techniques, machine expands the horizons of seismology and geodesy beyondlearning and large-scale data analysis or very dense receiver traditional instruments and methods.array analysis. Presentations related to amplitude extraction,attenuation, higher-mode Rayleigh/Love waves, body waves Session Chairs: Sarah E. Minson ([email protected]),or usage of multi-component signals are also encouraged. Elizabeth S. Cochran ([email protected]). Session Chairs: Marco Pilz ([email protected]), Advances in Seismic Site Response Studies GivenNori Nakata ([email protected]). Limitations in Understanding of Site Conditions Site response in seismic hazard assessment studies isThe 8th September Mw8.2 Tehuantepec and significantly affected by the accuracy and resolution of the19th September Mw7.1 Puebla-Morelos, Mexico near-surface material properties. Within the limitations of theEarthquakes: Reconnaissance Findings and Impact understanding of site conditions, our session brings togetheron Urban Areas in South-Central Mexico a wide variety of topics on the advances and limitations ofOn September 8th, 2017 a Mw8.2 intermediate-depth, current methodologies for site response analysis of earthquake-normal-faulting earthquake struck southeastern Mexico. induced ground motions. Our purpose is to promoteThe earthquake, with an epicentral location near the coast discussion that bridges the gap between the empirical andof Chiapas, is the largest recorded event in Mexico’s recent simulation-based methods in estimating seismic site response.history. The Tehuantepec event resulted in many casualties and We encourage presentations on state-of-the-knowledge andcollapses, as well as landslides and damage to the infrastructure -art site response analyses; the role of ergodic and non-ergodicin several cities and towns in the states of Oaxaca and Chiapas. site response studies in reducing epistemic uncertainty; theSoon after, on September 19th, 2017, a Mw7.1 intraslab, effect of variability of shear-wave velocity (VS) profiles, as anormal faulting earthquake occurred in central Mexico. result of non-uniqueness (inversion) or lateral variations in VSThe earthquake, approximately 120 km from Mexico City, (2D effects), on site response; the correlation of the site-specificcaused the collapse of more than 40 buildings and affectedinfrastructure operation not only in the capital of Mexico, butin several urban areas near the epicentral region. The officialdeath toll for both events is 471 people.24

14–17 MAY 2018 MIAMI, FLORIDAhigh-frequency spectral decay of Fourier amplitude spectra (κ0) reflection-refraction data, teleseismic data, surface-wave,a(tVonSdt3h0d)eeatenipmdseoe-dtahvimeerreapngrteoadxriyVebsS;aotsfhintehsp;eepurepfropfroemrrm3an0acnmeceof,freoκsm0tifmothraesthisouanlrlfoaanwcde ocean-acoustic, and normal-mode data. With many travel-timecorrelations of basin-depth proxies with other parameters; and amplitude anomalies yet to be explained, this session plansregionalization of crustal velocity Q models; limitations of full- to be an exciting forum to review and explore implications ofwaveform inversion studies; and the effectiveness of derivation the latest advances in the theory and modeling of anelasticityof site effects in the response spectra and Fourier domain. We towards explanation of some of these anomalies.cap the presentations with an open discussion with all speakersregarding the overall state of knowledge about the role of site Session Chairs: Roger D. Borcherdt ([email protected]),conditions in advanced site response studies. We also welcome Kristopher A. Innanen ([email protected]).presentations on topics related to seismic site characterization,advances in invasive/non-invasive measurement techniques, Advances on the Parameterization of Seismicmicrozonation studies and particularly developments in site Attenuation: Current Challenges and Opportunitiescharacterization or ground motion studies in Latin America. The characterization of attenuation at various scalesSession Chairs: Emel Seyhan ([email protected]), (e.g., regional or local attenuation) constitutes a critical aspectSean K. Ahdi ([email protected]), Eric M. Thompson in the prediction of ground motions, site response analyses([email protected]), Alan Yong ([email protected]). and the assessment of seismic hazards. However, isolating the effects of different attenuation mechanisms requires notAdvances in Explosion Seismo-Acoustic Research only a fundamental understanding of the wave propagationSeismo-acoustic approaches serve as primary tools in phenomenon, but also a proper statistical treatment of themonitoring explosions around the world. Improvements in uncertainties associated with data collected in the field, thethese fields have led to new analytical techniques including laboratory and through analysis of background noise andcorrelation methods, advanced array analysis, multimodal ground motion records. Hence, efforts toward definingsurface wave methods and quantitative uncertainty estimates parametric descriptors of seismic attenuation are inevitablyfor source and propagation models and derived parameters. We associated with challenges in collecting reliable experimentalinvite contributions highlighting research to improve detection, data and the proper interpretation of their correspondinglocation and interpretation of explosion sources, as well as range of applicability.associated uncertainties. There is a critical need for further research on current Session Chairs: Charlotte Rowe ([email protected]), seismic attenuation parameters to improve methodologies thatCatherine Snelson-Gerlicher ([email protected]), Sean Ford measure energy dissipation in earth materials and to better([email protected]), Christopher Young ([email protected]), understand how to capture different attenuation mechanismsJunghyun Park ([email protected]). at different scales. In this session, we welcome studies focused on investigating the parameterization of seismic attenuation,Advances in the Theory, Modeling and Observation the limitations of the existing methodologies to capture it, theof Anelastic Seismic Wave Propagation—Recent associated uncertainties and the corresponding implications onAnelastic Models of the Earth ground motion modeling, site-specific seismic hazard analysisRecent advances in the theory, modeling and observation and site response analysis. Challenges and opportunitiesof anelastic seismic waves reveal new insights regarding encountered in these processes are also welcome, whether theymethodologies to infer the anelastic structure of the Earth. For relate to limitations of a methodology to measure a specificexample, recent developments in general ray theory for anelastic parameter in the field, or the introduction of new analyticalmedia reveal ray paths and corresponding characteristics of methods to better decouple the effects of different attenuationtravel time and attenuation curves, which are not predicted mechanisms in ground motions (e.g., separating inelasticby elasticity theory or one-dimensional anelastic waves, yet attenuation from scattering effects).have important implications for some forward modeling andinverse problems. Recent developments in elastic single- and Session Chairs: Ashly Cabas ([email protected]), Stefanomulticomponent full waveform inversion and monitoring of Parolai ([email protected]), Celine Gélis ([email protected]),exploration seismic data indicate that proper parameterization Albert Kottke ([email protected]).and incorporation of P- and S-wave quality factors is a criticalneed. This session invites papers on the latest advances inanelastic wave-propagation theory, processing/inversionmethods for anelastic media, and anelastic (Q) models of theEarth, as inferred from exploration geophysics data, crustal 25

SEISMOLOGY OF THE AMERICASApplications of Machine Learning and Data Development and Validation of Statistical ModelsScience in Seismology of Small-Scale HeterogeneitiesThe increase in computational capability in the past decade Realistic small-scale variation of the media (velocity and/orhas made it possible to introduce and apply novel machine density) and surface topography is important for modelinglearning/data science algorithms and tools to the field of phases and coda amplitudes of broadband waves from regionalseismology, with the hope of extracting useful information seismic (earthquakes or explosions) sources. While the precisefrom large and complex seismic data sets. Recent attempts in strength, locations, sizes and shapes of the heterogeneitiesthe seismology applications have shown encouraging results are often unknown, statistical characterization of thein, for example, seismic signal detection and classification, heterogeneity can be used to simulate the ground motionseismic data interpolation, earthquake parameter estimation, variability due to seismic scattering processes. A wide varietyseismic noise analysis and reduction, subsurface structure of parameterizations, however, are available to characterizeimaging and complex signals/models visualization. More the statistical models (e.g., shape of the heterogeneity poweradvanced techniques and algorithms are emerging with new spectrum and its depth dependence, as well as crack shapes,possibilities, for instance: deep learning based on learning concentrations and orientations). Different parameterizationsdata representations has the potential to extract superior can produce similar seismograms that match aspects ofresults from large-scale datasets. The application of these new observed ground motion, so association of observations withtechniques can help improve our understanding of Earth specific scattering mechanisms that can narrow the model spacestructure and seismic sources from a brand new perspective. is critical to confident transport of prediction capability to newThis session invites all abstracts relevant to applications and source-receiver paths.developments of machine learning and data science in seismology. We welcome submissions focused on constraining values Session Chairs: Qingkai Kong ([email protected]), of and reducing the number of free parameters of statisticalChengping Chai ([email protected]), Zefeng Li models of media heterogeneity, on observations of seismic([email protected]), Min Chen ([email protected]), scattering processes and on methods and results for modelingRongrong Wang ([email protected]). the scattered wave fields.Challenges and Chances for the Widespread Session Chairs: G. Eli Baker ([email protected]),Implementation of Earthquake Early Warning (EEW) Kim B. Olsen ([email protected]), Yang ShenThe recent strong earthquakes in Southern Mexico with ([email protected]), Vernon Cormier (vernon.cormier@magnitudes of 8.0 and 7.3 have demonstrated the usefulness uconn.edu), W. Scott Phillips ([email protected]).of Earthquake Early Warning (EEW) to a massive audiencein Latin America and the world. In the social media people Early Warning for Large Earthquakes and Tsunamis:showed their surprise about the existence and functionality of Challenges, Case Studies and Innovationsthe Mexican EEW system and discussed whether such a system Earthquake early warning (EEW) algorithms attempt tocould be established in their country. We invite contributions characterize earthquake ruptures and ground motion in realabout the possible application of EEW in Latin America and time and provide advance notifications before the arrivalother less developed regions taking into account the specifics of damaging seismic waves and subsequent hazards (e.g.,of the prevailing building types (e.g. adobe) and construction tsunamis). EEW approaches and their products have evolvedpractices. We invite contributions proposing how EEW can over the past decade with recent advances in instrumentation,be implemented in less developed nations and whether EEW rapid source characterization, real-time ground motioncould be a relatively cheap and fast way for poor countries with prediction and communication technologies. Today’s earlyhigh seismic risk to give some protection to their populations warning systems can go much beyond this basic function,against the massive loss of life in great earthquakes and how it providing estimates of shaking intensity and potential damagecan be combined, in the long term, with measures to improve for implementation of post-event emergency action plans.the building stock. We particularly solicit studies dealing However, many challenges still exist in for creating effectivewith how EEW can be effectively established and operated, EEW systems. For instance, while medium-sized earthquakesincluding: densification of seismic networks with new low-cost are sufficiently well described with very simple point sourceEEW-compatible seismic equipment; the development of new models, characterizing large ruptures is complex. Recentefficient EEW methods that are robust in the face of challenging experiences with EEW systems that were in operation duringseismicity and network operation; transfer of EEW methods into large earthquakes (e.g. the Mw7.0 2016 Kumamoto, Japan andoperational software compatible with general seismic monitoring; Mw7.1 2017 Morelos-Puebla, Mexico earthquakes), as well asthe establishment of new automatic seismic processing centers offline studies, are starting to shape our expectations of thein many countries; and studies dealing with technical and social performance we can realistically expect from EEW systems.aspects for delivering alerts to the general population. Session Chairs: Wilfried Strauch ([email protected]),Victor A. Huérfano ([email protected]).26

14–17 MAY 2018 MIAMI, FLORIDA In this session, we invite scientists, engineers, practitioners Emergency Management, Resilience andand policy makers to present work related to EEW applications Preparednessand case studies. Some topics might include: Emergency and disaster management and preparedness• innovative event recognition, source characterization approaches involve the mitigation, preparation, response and recovery and aim to reduce vulnerability to hazards and to cope and false alert avoidance algorithms; characterization of with disasters from both natural events and human-induced uncertainties stemming from EEW algorithms and ground events. The planning phase involves a coordinated, co-operative motion prediction in real-time; process of preparing to match anticipated urgent needs• comparison of point-source and finite-fault approaches; with all available resources. All the phases require research,• performance assessment for long-duration and complex evaluation, testing/validation, implementation and updating; ruptures; the final product will be a living emergency plan that should be• integration of real-time GPS data in EEW systems; periodically reviewed and adapted to changing circumstances• real-time ground motion and damage prediction; and real-life situations. In this session, we call for participants• exploration of local and global tsunami early warning; to focus on emergency planning, management, continuity of• EEW case studies, testing and performance evaluation operations, technology, social processing and guidance. In a of existing systems; and real world that is subject to accelerating physical, social and• discussion of implications for earthquake hazard, risk and economic change, the challenge of managing emergencies well response models with respect to the science community as depends on effective planning and foresight and the ability well as private and government entities. to connect disparate elements of the emergency response into Session Chairs: Christine J. Ruhl ([email protected]), coherent strategies.Emrah Yenier ([email protected]),Men-Andrin Meier ([email protected]), Neil Spriggs Session Chairs: Victor A. Huérfano ([email protected]),([email protected]), Diego Melgar (dmelgarm@ Christa G. von Hillebrandt-Andrade ([email protected]),uoregon.edu), Marlon D. Ramos ([email protected]), Elizabeth A. Vanacore ([email protected]),David Easton ([email protected]), Ronald Jackson ([email protected]).Earthquake Source Parameters: Theory, Environmental Seismology: Glaciers, Rivers,Observations and Interpretations Landslides and BeyondUnderstanding origin and spatio-temporal evolution of Environmental seismology is the study of seismic signalsseismicity needs a careful quantitative analysis of earthquake generated at and near the surface created by environmentalsource parameters for large sets of earthquakes in studied forces in the atmosphere, hydrosphere or solid Earth.seismic sequences. Determining focal mechanisms, seismic Contributions to this session are welcome on a wide varietymoment tensors, static stress drop, apparent stress and other of topics including (but not limited to) the seismic signalsearthquake source parameters provides an insight into tectonic associated with landslides, rock falls, debris flows, lahars, snowstress and crustal strength in the area under study, material avalanches, cliff or pinnacle resonance, bedload transport,properties and prevailing fracturing mode (shear/tensile) in the fluid flow in open and confined channels, open water waves,focal zone and allows the investigation of earthquake source tides, glacial stick-slip, iceberg calving, crevassing, extremeprocesses in greater details. In addition, studying relations wind and weather and wind turbines or other anthropogenicbetween static and dynamic source parameters and earthquake sources. Contributions that seek to conduct monitoring, createsize is essential to understand the self-similarity of rupture physical or statistical models of source processes or systems,process and scaling laws and to improve our knowledge on detect events, characterize a wave propagation environment, orground motion prediction equations. interact with other branches of the Earth or social sciences are additionally encouraged. This session focuses on methodological as well asobservational aspects of earthquake source parameters of Session Chairs: Bradley P. Lipovsky (brad_lipovsky@natural or induced earthquakes in broad range of magnitudes fas.harvard.edu), Kate Allstadt ([email protected]),from large to small earthquakes, including acoustic emissions Rick Aster ([email protected]).in laboratory experiments. Presentations of new approachesto focal mechanisms determination, seismic moment tensorsand other source parameters as well as case studies related toanalysis of earthquake source parameters are welcome. We alsoinvite contributions related to scaling of static and dynamicsource parameters and to self-similarity of earthquakes. Session Chairs: Vaclav Vavrycuk ([email protected]),Grzegorz Kwiatek ([email protected]), Douglas Dreger([email protected]), Carl Tape ([email protected]). 27

SEISMOLOGY OF THE AMERICASEssentials of Seismic Risk Estimates America poses unique challenges due to the high variability ofEstimating the seismic risk for a region is important for officials data types and qualities.as well as for individuals for deciding what mitigating action, ifany, is to be taken. The risk can be expressed in units of number This session aims to present new data sets and the latestof strongly affected people, fatalities, injured or monetary losses. integration of fault sources in SHA models. We inviteThis session will focus on methods of estimating risk and the contributions related to the description of earthquake sources,data sets necessary to calculate it are essential elements that need from the field to the modeling, as well as discussions aboutto be discussed. The underlying question of seismic hazard must whether and how uncertainties in field data are transposedbe understood for the region in general, although this session into the source models. In particular, we solicit studies thatdoes not focus on it. The seismic risk problems in the regions provide discussions about the comparison and analysis of faultof Central and South America are of special interest. Estimates parameters and fault models in South and Central America.of the differences in the seismic risk for the affluent and the We also solicit contributions on how 3D, geometrically complexpoorer sections of society are invited. Methods for structural fault segments are identified and defined, their impact onmeasures to reduce seismic risk have been developed, but new probabilistic seismic hazard results and studies that incorporateideas, especially those applicable to Latin America, are welcome. geodetical and geophysical observations. The session aims atQuantitative means to educate decision-makers and the public linking the “New” and “Old” Worlds, i.e., the Americas andare also of interest. Europe, by strengthening common rules and procedures inside the international community that works on these subjects. Session Chairs: Max Wyss ([email protected]),Sergio Barrientos ([email protected]), Ramón Zúñiga Session Chairs: Laurence Audin ([email protected]),([email protected]). Felipe Aron ([email protected]), Marianne Saillard (saillard@ geoazur.unice.fr), Laura Peruzza ([email protected]),Exploring Rupture Dynamics and Seismic Wave Franck Audemard ([email protected]), Oona ScottiPropagation along Complex Fault Systems ([email protected]),Investigations related to how complexities in fault parameterscould potentially impact the behavior of earthquake rupture Forecasting Aftershock Sequences in the Real Worldand affect seismic hazard are areas of active and challenging In the last few years, increasingly sophisticated earthquakeresearch. This session will highlight recent advances in forecast models have been applied in many regions around therupture dynamics on complex fault systems. We are open to globe in response to ongoing earthquake activity. Traditionally,a wide range of studies related to numerical, experimental aftershock models have been used to forecast short time-and observational fault rupture dynamic studies with windows of days or weeks and this type of aftershockheterogeneities such as fault geometry, fault roughness, forecasting has remained the most common application.frictional parameters, creeping mechanisms, stress asperities, However, as demonstrated in recent New Zealand sequencesoff-fault material properties, bi-material interfaces and (e.g., Canterbury in 2010-2011 and Kaikoura in 2016), whenwedge structures along subduction zones. We also encourage end-users become more familiar with forecast modelling,contributions on research that explores links between their need for other means of understanding the forecasting,earthquake source physics, tsunami generation/propagation such as through longer time frames, increases. Further, thereand ground motion variability. is evidence that a variety of decisions were made by emergency managers, building engineers and key decision-makers based on Session Chairs: Roby Douilly ([email protected]), these forecasts that had previously not been anticipated by theKenny Ryan ([email protected]), David D. Oglesby scientific community. Other complexities included forecasts([email protected]), Ruth Harris ([email protected]), and predictions made publicly by alternate theorists.Eric Geist ([email protected]). Experience from New Zealand has highlighted some ofFault to Seismic Hazard Assessment (Fault2SHA) the limitations in our current understanding and modelingin Latin (Central and South) America approaches, such as: 1) understanding the forecast skill ofIn seismic hazard analysis, increasing importance is given to aftershock models as they extend to longer time-periods;geodynamic and tectonic data for modeling seismic sources 2) forecast models that provide useful information forby actual faults. Fast deforming regions like California, New medium-term time-frames; 3) spatial distribution of earthquakeZealand, Japan and Turkey that have led the development of sequences; 4) forecasts of ground motion and losses; andthis practice since the 90s, are now facing new lessons, whilst 5) communication methods and tools that allow for successfulslowly deforming areas (i.e., Europe) are learning how to deal uptake of relevant information during heightened earthquakewith their datasets. Latin America is a broad region of interest response times. In this session, we welcome presentations thatfor earth scientists as it is characterized by both intense seismic cover these or any other operational earthquake forecast modelactivity along the subduction zones and distributed continental development and communication topics.faulting. Assessment and mitigation of seismic hazards fromthe growing set of active faults identified and mapped in Latin Session Chairs: Matthew C. Gerstenberger ([email protected]), Sara K. Mcbride 28 ([email protected]), Nick Horpsool ([email protected]), David A. Rhoades ([email protected]).

14–17 MAY 2018 MIAMI, FLORIDAThe Future of Telemetered Seismic Arrays— Although the tests CSEP has conducted have been successfulWhere the Operation of the Network Ends and and well-received, they have also shown the limitations of thethe Science Begins CSEP approach. What is a sufficient testing period for models?Seismic science generally starts with a quality waveform Are time-invarying models really describing the long-termarchive and a rich catalog of well located events with accurate seismic activity? Are long-term models testable at all? Do short-magnitudes. This session will explore new and innovative ways of term models provide significant information for the forecastingfield operations and discuss input on more efficient approaches problem or do they only model aftershock sequences? Whatto delivering this scientific starting point. This could include other signals should be included in forecasting models tocloud and network services, engineering services, improved improve them? Do improvements in forecasting modelsinstrumentation, co-located complimentary instruments and translate into improvements of hazard models? How canless expensive installations. An integrative approach to station the tests be improved? Many aspects of seismic hazard orbuilding and management using many geophysical observations earthquake forecasting remain inherently untestable if onlyshould become standard in most supported telemetered networks. the model forecasts are tested and not the model ingredients.Arrays of seismometer and geophysical instruments that address We propose to create new areas of activity for CSEP, namelymore use cases for less investment are the key going forward. targeted experiments that cannot be conducted with theWe invite abstracts on a wide range of topics that affect the current CSEP software system.creation, management and type of geophysical stations built: earlyearthquake warning, public hazard reporting, environmental We solicit contributions addressing forecasting models,monitoring, science observatories, cost, performance, data use forecast testing problems, new ideas for CSEP experiments,case, data latency, noise characteristics, regional concerns and the possibilities of further CSEP developments, ways of expandingcost of data per gigabyte. CSEP into the hazard and risk domain and more general views on the forecasting problem. Session Chairs: Tim Parker ([email protected]),Allison Bent ([email protected]). Session Chairs: Andrew J. Michael ([email protected]), Danijel Schorlemmer ([email protected]),Ground Motion and Earthquake Engineering Maximilian J. Werner ([email protected]),Modeling of ground motion and analysis of the response of Warner Marzocchi ([email protected]).structures to earthquakes are key to increasing earthquakeresiliency in communities. This session solicits presentations on Interaction between Observations and Models inadvances in ground motion modeling, case studies of regional Seismo-Volcanic Studiesground motions, and especially the response of man-made Seismo-volcanic studies demand a deep understanding ofstructures to earthquakes. volcanic systems. Such a study requires one to determine the internal structure of volcanic edifices to illuminate the Session Chairs: Sinan Akkar ([email protected]), configuration of the plumbing-feeding system, the natureThomas Herring ([email protected]). and role of the fluids that fill internal cracks and cavities of complex geometries, the properties of seismic waves thatIncreasing Testability—Expanding Possibilities and cross the volcanic edifice, the role of tectonic stresses andFuture Developments of the Collaboratory for the faults and many other intriguing aspects of these complexStudy of Earthquake Predictability systems. Numerous seismic instruments have been deployedThe Collaboratory for the Study of Earthquake Predictability on active volcanoes in recent decades either in a permanent(CSEP) has expanded over the years to many different role for volcano surveillance or for temporary campaigns. Wetesting areas hosted at multiple testing centers. Hundreds of extend this invitation to discuss recent contributions in theearthquake forecast models have been submitted to CSEP fields of modelling, based on a foundation of observations ofand are being tested. New testing metrics were developed volcanic activity ranging from simple seismic networks to highand implemented and a lot of progress was made to establish resolution multi-parametric approaches. We expect to haveCSEP as an institution that cannot be ignored when issuing an exciting interactive session between seismologists and theearthquake forecasts. Its rigor and independence became the personnel of volcanic observatories from Latin America,standard in evaluating earthquake forecasts and in reporting USA and elsewhere.on the results. Session Chairs: Mario C. Ruiz ([email protected]), Mauricio Mora ([email protected]). 29

SEISMOLOGY OF THE AMERICASMegathrust Earthquakes: Recurrence, Rupture New Frontiers in Seismic and Acoustic Data AnalysisModes and Tsunamis Advances in computing power, novel sensing systems andThis session will address megathrust faulting at subduction analytical techniques have revealed valuable new perspectives onzones. Topics include: 1) patterns of earthquake recurrence; seismic and acoustic wave fields. For example, computationally2) differences among fault ruptures that overlap; 3) interseismic, intensive methods like the Empirical Wavelet Transform cancoseismic and postseismic deformation; 4) splay faults as give much sharper time/frequency representations than Fourier-clues to megathrust rupture mechanics and tsunami hazards; based methods. Large N seismic arrays, free-flying infrasoundand 5) subduction zones, as in the Caribbean, where the stations and distributed fiber optic sensor cables acquirevery occurrence of great tsunamigenic earthquakes has yet nontraditional data sets that then require new signal detection,to be demonstrated. association and location methods. This session will focus on innovative ways of presenting and analyzing seismic data, with Session Chairs: Peter Molnar ([email protected]), an emphasis on new developments. We invite contributors whoPeter Haeussler ([email protected]), Brian F. Atwater have developed or are exploring new techniques and/or who([email protected]). wish to offer relevant evaluations of widely used methodologies.Microzonation Studies—Site EffectsAs the world population increasingly moves to big Session Chairs: Daniel C. Bowman ([email protected]),metropolitan urban areas, the risk associated with earthquakes Sarah A. Albert ([email protected]), Matthew M. Haneyincreases in these areas. This is particularly evident in ([email protected]).developing countries. Local soil conditions are a first orderparameter that controls seismic response and therefore The Next Big Earthquake: The Usual and thebuilding damage due to earthquake shaking. Careful planning Unusual Suspectsof urban development with respect to soil conditions must Recent large and great earthquakes have altered the terrain,be exercised to prevent loss of structures and fatalities. Due economies and lives of people in Haiti, Chile, New Zealand,to restricted space and city regulations, microzonation Nepal and Japan. The potential for future damagingstudies have gained popularity over traditional geophysical earthquakes in these and other populated regions nearmethods over the past decades as rapid, cost-effective and tectonically active plate boundaries are well known andenvironmentally friendly. pose increasingly significant risk to societies there. But what observational evidence do we have to understand where the Damage that occurred in Mexico City due to the September next big earthquake will be? This session seeks paleoseismic19, 2017 Puebla-Morelos earthquake, compared to damage and historical earthquake studies that examine large and greatfrom September 19, 1985 Michoacán earthquake, demonstrates earthquakes around the world that pose such hazards. Analysesthe importance of understanding soil response and interaction that include the number of people impacted, past and futurewith buildings for different source characteristics and soil effects on urban infrastructures or cultural systems and theconditions. Other recent earthquakes, such as the 2016 size or level of ground deformation are of particular interest.Pedernales earthquake in Ecuador, the 2010 Maule earthquake Additionally, field investigation and analysis of recent surface-in Chile, and the 2010 earthquake in Haiti demonstrate the rupturing earthquakes and studies that examine the variabilityimportance of site effects for damage distribution. Knowledge of past ruptures in size and time with a special emphasis on howgained from these earthquakes can help mitigate damage from such paleoseismic data can be used for seismic risk mitigationfuture earthquakes. are welcome. Submissions from studies in Central and Latin America are particularly encouraged, as are studies of global This special session is about case studies of seismic fault networks.microzonation around the World, what we have learned aboutseismic response in urban areas, and how we can help planners Session Chairs: Sinan O. Akciz ([email protected]),to develop earthquake resilient cities. Kate Scharer ([email protected]). Session Chairs: Ilias Papadopoulos ([email protected]), Numerical Modeling of Earthquake Ground Motion,Michael Schmitz ([email protected]). Rupture Dynamics and Seismic Wave Propagation Continuous development of numerical modeling methods 30 in seismology is driven by emerging requirements in obser- vational seismology, advances in the mathematical sciences, evolution of computer architectures and programming models, adaptation of methods originating in other scientific fields, as well as by practical applications including site-specific seismic hazard assessment. This session is a forum for presenting advances in numerical methodology, whether the principal context is observational, mathematical/numerical, computational or application-based.

14–17 MAY 2018 MIAMI, FLORIDA We invite contributions focused on development, in the subsurface and illuminate how earthquakes modify theverification and validation of numerical-modeling methods poroelastic environment. Geomechanical reservoir simulationsand methodologically important applications especially relate fluid injection volumes/rates to subsurface fluid-pressureto earthquake ground motion, seismic noise and rupture changes and numerical methods couple reservoir models todynamics, including applications from the field of induced earthquake simulators to understand how induced seismicityseismicity with particular focus on multi-physics aspects, for sequences evolve due to changes in injection operations. Theseexample, combining fluid migration and stress transfer in methods reveal that the character and evolution of inducedporous media with rupture dynamics and wave propagation in seismicity are more complex than previously thought. Weporo-elastic media and integration of dynamic event modeling solicit contributions from laboratory/field experiments andwith simulation of the full seismic cycle. We encourage observational, geomechanical and numerical modeling studiescontributions on the analysis of methods, fast algorithms, that explore the wide variety of characteristics, as well as thehigh-performance implementations, large-scale simulations, physical conditions and mechanisms, that control behaviornon-linear behavior, multi-scale problems and confrontation of induced seismic sequences. In addition, we encourageof methods with data. contributions that discuss datasets and techniques needed to further understand and mitigate the risk associated with Session Chairs: Peter Moczo ([email protected]), fluid injection.Steve M. Day ([email protected]), Jozef Kristek([email protected]). Session Chairs: Kayla A. Kroll ([email protected]), Elizabeth S. Cochran ([email protected]), Brett CarpenterObservations and the Physics Behind ([email protected]).Complex EarthquakesNew observations of large earthquakes are challenging the Ocean Bottom Seismology—Hurdles, Strategiessimple model of a smoothly expanding rupture on a planar and Outcomesfault. Some recent events have involved multiple faults (e.g., The field of Ocean Bottom Seismology has been rapidly2012 M 8.6 Sumatra, 2016 M 7.8 Kaikoura, New Zealand), expanding, with many types of deployments for a wide varietyre-rupturing of a single fault patch (e.g., 2015 M 7.5 Hindu of targets. Ocean floor sensors have been used for structuralKush), dynamic triggering of later sub-events (e.g., 1997 M 7.1 and geodynamic studies, enhanced seismic monitoring andHarnai, Pakistan) and the interaction between intraplate and improved source location. Different marine environments andinterplate faults (e.g., 2009 M 8.1 Samoa-Tonga, 2016 M 7.9 tectonic settings require innovative solutions to deploymentPapua New Guinea). Are these earthquakes outliers? Or does logistics, sensor emplacement and data recovery. Following theour increased ability to resolve a detailed picture capture a new extraction of data, special problems relating to a sometimesnorm? How can we define a new common behavior? What are very noisy environment pose new challenges to maximizethe physical mechanisms that control the signatures of complex data utility. We welcome contributions addressing all aspectsearthquakes? We welcome contributions on geodetic, seismic of active and passive ocean-bottom seismology, technicaland field observations of complex earthquakes, new source innovations, data analysis and the scientific results obtainedinversion/imaging techniques, as well as physical analysis and from OBS or amphibious projects.simulation of complex earthquakes. Session Chairs: Charlotte A. Rowe ([email protected]), Session Chairs: Zhongwen Zhan ([email protected]), Francisco J. Núñez-Cornú ([email protected]),Gavin Hayes ([email protected]), Marine Denolle (mdenolle@ Susan L. Bilek ([email protected]).fas.harvard.edu). Onshore Quaternary and Contemporary Tectonics:Observed Characteristics of Induced Seismicity: Implications for Seismic HazardsFrom Laboratory to Field Scale We solicit abstracts that focus on work related to earthquakeA wide variety of methods have been employed to examine the history of onshore faults, regional or site-specific tectonicphysical mechanisms and site-specific conditions that control deformation (e.g., changes in marine terrace elevations or inanthropogenically induced seismicity. Laboratory experiments stream gradients), current crustal stress orientations and/orand mesoscale experiments of fluid injection into active faults seismicity, that contribute to the understanding of the hazardsinvestigate the role of fluids and friction on fault stability and posed by onshore faults in the Caribbean region. Papers couldthe contribution of aseismic slip to the nucleation process. also include the use of the information available about theSeismic array installations including large-N array deployments activity of onshore faults in the assessment of seismic hazardscharacterize the seismic wave-field, microseismicity and for structures of various types or information from offshorefault structure. Advanced earthquake detection and location studies that implicate onshore faults.techniques are being used to identify complex spatial andtemporal migration patterns and statistical methods are used to Session Chairs: Lucille Piety ([email protected]),differentiate between tectonic and induced events. Deployment Joanna Redwine ([email protected]).of pressure monitoring networks explore the migration of fluids 31

SEISMOLOGY OF THE AMERICASPlate Boundary Segmentation and Coupled-to- describing how such results are applied for shaking andCreeping Plate and Block Boundary Faults tsunami intensity forecasts (i.e. for early warning systems)This session aims to begin characterizing the range of fault are highly welcome and desirable. The use of casters or otherbehaviors on plate and block-boundary faults in the Caribbean protocols to collect and distribute the data, the computerand Latin American regions. Presentation of case studies infrastructure required to manage data operations, correctionthat use seismological, geodetic, geological, geomorphic schemes employed for precise point positioning, dataand other approaches to study individual locked, creeping manipulation, visualization of data and other steps carried outand intermediate faults and segments are invited. We also in the estimation of source parameters are likely contributionsseek out the presentation of work that uses both empirical expected for this session. We also welcome contributionsevidence and modeling to understand the physical causes for that discuss operational issues such as: what is required inthese differing fault behaviors. A major goal of the session is the field to ensure highly reliable data flow, what can beto begin understanding how and why individual plate and done to maintain low-latency, high-rate data steams withoutblock boundaries are segmented and how locked and creeping overburdening communications, how can redundancy be builtsegments link in space and time. into data paths and how to leverage existing infrastructure in seismic networks to enable GNSS data flow and vice versa? Session Chairs: John C. Weber ([email protected]),Omar J. Perez ([email protected]). Session Chairs: Alberto M. Lopez ([email protected]), Kathleen M. Hodgkinson ([email protected]),Present-Day Plate Boundary Deformation and Diego Melgar ([email protected]), Sebastian RiquelmeSeismic Hazard in the Caribbean ([email protected]), David Mencin ([email protected]),Seismic hazard is an integral part of the Caribbean. Victor A. Huérfano ([email protected])Earthquakes can be particularly devastating to countries of theregion that have seen a significant rise in population density— Recent Advances in Dense Array Seismologyoften with a concentration in coastal areas and substandard The availability of dense seismic arrays is desired to recordbuilding practices. A number of research and observation well-sampled and unaliased wavefields. The recording of fullprograms are however underway with the goal of better wavefields combined with advanced data analysis techniquesunderstanding seismic hazard and the physical processes that has the potential to image the subsurface and to study sourcecontrol the occurrence of earthquakes in the Caribbean, with characteristics with unprecedented resolution. The recentthe potential to inform decisions and contribute to capacity availability of low-cost and easy-to-deploy seismic sensors andbuilding. This session aims at bringing together geoscientists emerging technologies such as Distributed Acoustic Sensorswith an interest in seismic hazard characterization and active (DAS) have made it possible to deploy large and dense arrays inplate-boundary deformation in the Caribbean through a reasonable time frame. Data acquired by such dense systemsseismology, paleoseismology, geodesy, tectonics, geodynamics promote the development of many new data analysis methodsor any other relevant discipline. that study seismic signals in a more comprehensive fashion. This session aims to compile innovative efforts that engage in recent Session Chairs: Eric Calais ([email protected]), advances in dense array seismology. We invite contributionsSteeve Symithe ([email protected]), from all research focus areas that are broadly related toO’Leary Gonzalez Matos ([email protected]), dense arrays. Example topics include, but are not limited to,Valérie Clouard ([email protected]). instrument development, field experiment with Large-N or DAS array, high-resolution imaging of subsurface structure,Real-Time GNSS Network Operations and full wavefield reconstruction, environmental seismology andAdvances towards Early Warning Systems seismic source characterization.A fundamental aspect of Real-Time GNSS operations is thecapability to obtain physical charactersitics of the rupture Session Chairs: Ting Chen ([email protected]), Fan-Chi Linprocess after the onset of an earthquake. Of particular interest ([email protected]), Norimitsu Nakata ([email protected]),is the ability to use rupture parameters to assess the effects of Catherine Snelson ([email protected]).strong ground motions and a potentially ensuing tsunami.This session seeks contributions of the latest approaches inusing Real-Time GNSS data to be applied in source inversionalgorithms and to produce seismic parameters in seconds tominutes after the occurrence of an earthquake. Contributions32

14–17 MAY 2018 MIAMI, FLORIDAThe Recent Earthquakes that Shocked Mexico Session Chairs: Michael West ([email protected]), Sergioin September 2017 Barrientos ([email protected]), Paul Bodin (bodin@Last September, Mexico experienced two large earthquakes uw.edu), Victor A. Huérfano ([email protected]),that seriously affected the south and central parts of the Xyoli Peréz-Campos ([email protected]), Alexandroscountry. Both earthquakes were intraslab normal-faulting Savvaidis ([email protected]),ruptures within the oceanic Cocos plate. The first one(Mw=8.1) occurred on September 8 in the Tehuantepec Retrieval of Fine Scale Information UsingGulf, collapsing thousands of small to medium size buildings Seismic Noisein several provinces around the epicentral area. Numerous The use of ambient noise and other passive sources, coupledaftershock sequences (or triggered seismicity) followed the with the advent of large-N deployments, has been appliedmain earthquake increasing the damage to the Tehuantepec to an exponentially increasing number experiments in theIsthmus. The second event (Mw=7.1) occurred eleven days last decade. Parallel advances in numerical methods and alater, on September 19, south of the border between the deeper understanding of the physics and statistics of theseMorelos and Puebla States and close to important cities such passive wavefields has led to a number of highly inventiveas Cuernavaca and Mexico City (~100 km to the north of methodological advances affecting both the spatial andthe epicenter), where hundreds of buildings collapsed or were temporal resolution of recovered structures. Namely, ambientseriously damaged. In total, the authorities estimate that about noise body wave tomography, passive temporal monitoring of400 people died nationwide as a consequence of both events. dynamically varying structure through dt/t measurements orThis session welcomes papers addressing various seismological other approaches, full waveform modeling of the ambient fieldaspects of both earthquakes, such as source modelling, and improved statistical models for diffusely scattered coda,aftershock sequences, ground motion and tsunami modeling, have made substantial impacts in the way researchers nowstrong motions, triggered seismicity and tectonic implications approach classically intractable problems. In this session, weamong others. seek to display such advances in the use of passive sources, either through seismic interferometry or other novel approaches, that Session Chairs: Arturo Iglesias ([email protected]), result in the retrieval of fine scale information in new settingsVala Hjörleifsdóttir ([email protected]), or the improvement of algorithms allowing for retrieval of moreVíctor M. Cruz-Atienza ([email protected]), accurate physical parameters from previously tested datasetsRoberto Ortega-Ruiz ([email protected]). and media. Submissions are encouraged for research tackling current difficulties in resolution and physical parameterRegional Seismic Network Approaches and retrieval, as well as computational limitations and solutions toStakeholder Collaborations such problems.Seismic monitoring is a collaborative effort typically carried outby a broad array of state, university and federal partners. This Session Chairs: Julien Chaput ([email protected]),distributed approach provides standardized earthquake analysis Thomas Lecocq ([email protected]).while adapting to the needs of specific regions and stakeholders.Many seismic networks in the U.S. coordinate through the Science Gateways and Computational Tools forAdvanced National Seismic System. There are numerous Improving Earthquake Researchorganizations, both long-established and new, that operate Science gateways allow research communities to access sharedindependently. This is the case for most national networks data, software, computing services, instruments, educationalwithin the Americas and other regions of the world. This materials and other resources. Advances in earthquakesession highlights the unique observations, opportunities and science are becoming increasingly tied to the ability toadaptations of so-called regional seismic networks. The purpose fuse and model multiple data types, requiring advances inof the session is to foster collaboration and showcase specific computational infrastructure. Earthquake scientists must relyregional success stories. on computational laboratories to integrate disparate data sets and perform simulation experiments, particularly because We welcome a wide range of contributions spanning earthquake processes span multiple spatial and temporal scales,science, operations and/or stakeholder engagement and ranging from microscopic, millisecond source physics to long-particularly encourage submissions based on lesser-known term, global tectonic scales. This session focuses on advances inorganizations. Examples include but are in no way limited to: computational infrastructure and data synthesis for enhancingresponse to major earthquakes, unique tectonic considerations, earthquake science, including software, supercomputing,non-earthquake sources, industry applications, forensic simulation models, sensor technology, heterogeneous dataseismology, detection and processing workflows, facilities sets, cloud computing, management of huge data volumes andmonitoring, custom products and services and support for development of community standards.local stakeholders. The only prerequisites are (i) real-time dataand (ii) adaptation to a regional need or phenomenon. If your Session Chairs: Andrea Donnellan (andrea.donnellan@hometown network does something you are proud of, this jpl.nasa.gov), Lisa Grant Ludwig ([email protected]).session is the place to show it off. 33

SEISMOLOGY OF THE AMERICASSeismic Event Screening Seismic Structure of Convergent Plate MarginsOne of the products from global seismic monitoring Convergence between tectonic plates is accomodated inprovisional to entry-into-force of the Comprehensive Nuclear- multiple ways, including subduction, large-scale transformTest-Ban Treaty (CTBT) is a Standard Event Bulletin (SEB). motion and continent-continent collision. This convergenceThe SEB contains event characterization parameters that can is manifested through the creation of volcanic arcs, orogenicbe used to screen-out seismic sources that are almost certainly plateau formation and high seismicity rates. As a result,not nuclear test explosions. During the two decades since the lithospheric-scale reworking of the converging plates isCTBT was opened for signature, research has resulted in a common in these systems.wide range of new source characterization methods. Basedpartly on results from this research, many seismic sources The tectonics of convergent plate margins have been wellcurrently included in the SEB could be confidently identified studied. However, how convergence is manifested in the seismicas naturally occurring earthquakes. The new developments structure of these regions is still debated due to the complexityinclude, but are not limited to, comparison with empirical of the regions and differences in datasets and methodology.templates based on well calibrated past events, more precise This session aims to shed light on how the processes thatdepth constraint through simultaneous location of multiple accompany convergence are expressed in the lithosphericevents, ratios of spectral amplitudes of local and regional structure of the crust and upper mantle of these margins, inphases, ratios of different magnitudes computed from local, the context of the increased availability and coverage of seismicregional and teleseismic data, determination of moment data and recent advances in seismic tomography and imagingtensor solutions from regional and teleseismic data and joint techniques. Examples of convergent plate boundary systemsuse of seismic and infrasonic data. This session comprises include but are not limited to: the Mediterranean, Alpine-contributions related to evaluating which methods have Himalayan, American Cordillera, Caribbean and westernadvanced sufficiently to be ready for operational use in CTBT Pacific systems.monitoring and what further research would be required toimplement other methods in operations. Session Chairs: Min Chen ([email protected]), Jonathan R. Delph ([email protected]). Session Chairs: Raymond Willemann ([email protected]), David Bowers ([email protected]). Seismic Studies of Earth’s Crust and LithosphereSeismic Hazards and Historic Earthquakes in Seismicity, seismic catalogs, and structure of Earth’s crust andPuerto Rico and the Northern Caribbean Region lithosphere are key components to understanding regionalThe U.S. Geological Survey seismic hazard assessment for seismic risk and tectonics. The session includes studies ofPuerto Rico and the U.S. Virgin Islands was last updated seismicity and imaging of Earth’s crust and lithosphere as well asin 2003. For this session, we solicit papers that discuss new advances in seismic catalogs recording local seismicity.developments in probabilistic seismic hazard analysis inPRVI and the broader Caribbean region, as well as studies of Session Chair: Elizabeth A. Vanacore (elizabeth.vanacore@historical earthquakes that inform the modern hazard models. upr.edu).We invite researchers to present new results that are critical toseismic hazard modeling and evaluation, including ongoing ShakeMap-Related Research, Development,efforts by GEM and the U.S. Geological Survey. Seismic hazard Operations and Applicationsevaluation requires: 1) high-quality earthquake catalogs; 2) ShakeMap Version 4 represents a major re-engineering offault slip rates; 3) earthquake recurrence models; 4) region- the entire ShakeMap software package, including the wayspecific ground motion models; and 5) local site amplification ground-motion parameters are interpolated, both geospatiallymodels. We encourage presentations on novel and creative and as a function of frequency. The new multivariate-normalconcepts that will contribute to advancing seismic hazard interpolation strategy naturally accommodates uncertainmodels in the region. intensity as well as ground-motion parameters, along with the correlations between the different parameters. While this new Session Chairs: Roland LaForge (laforgegeoconsulting@ software and capabilities add important new functionality,gmail.com), Dan McNamara ([email protected]), they require (among other gaps) additional R&D on groundCharles Mueller ([email protected]). motion and intensity models, duration/intensity models, model selection and spatial cross correlations. Thus, this session 34 explores current research in the modeling and validation of ground motion and intensity relations as well as new or emerging efforts to improve ground motion prediction, site amplification and geospatial analyses (along with uncertainties) pertinent to ShakeMap. Presentations on new ShakeMap products, formats and web-rendering are also encouraged. A ShakeMap Workshop will be held on the Friday (May 18th) following the SSA meeting at the meeting venue. Workshop attendees are particularly encouraged to share their ShakeMap-

14–17 MAY 2018 MIAMI, FLORIDArelated examples, research, operations and needs. We also Benthem et al, JGR, 2013) create interesting space problems inencourage presentations on more general research, operations, the upper mantle beneath CAR and its neighbors, influencingor applications related to ShakeMap. Such applications include, upper mantle flow.but are not limited to: earthquake scenarios, risk assessment,loss estimation, earthquake response tools and engineering and In north and northwestern CAR a complex series of strikeother analyses that utilize ShakeMap ground motion estimates slip and oblique slip faults extend from Puerto Rico acrossand associated uncertainty information. and around Hispaniola to join with the strike slip faults of the Cayman trough. These include what may be incipient Session Chairs: David J. Wald ([email protected]), Eric M. northward subduction of CAR along the Muertos trough southThompson ([email protected]), Charles B. Worden of Hispaniola and Puerto Rico.([email protected]). The plate boundaries around Panama are complicated andStructure and Dynamics of Earth’s Mantle include what appears to be incipient CAR subduction just eastUnderstanding the structure and dynamics of Earth’s mantle of the Panama arc and the northeastern boundary of the recentlyprovides key insights into the fate of subducted slabs, the identified Coiba and Malpelo plates (Zhang et al., GRL, 2017),evolution of Earth, the dynamic forces that help drive large bounded by the Panama arc, Cocos, Nazca and SA.scale surface tectonics and core-mantle interactions amongstother topics of interest. Recent advancements in global This diversity of tectonic boundaries provides an unusuallyseismic station coverage as well as advances in computational rich source for seismicity and tsunamigenic earthquakes.techniques have led to a current renaissance in studies of Regional seismicity and GPS velocities suggest that a numberEarth’s interior. For example, recent P-coda scattering studies of small tectonic blocks, moving quasi-independently andand waveform tomography have provided new insight into the deforming internally, are caught in the boundary zonesdistribution of mantle heterogeneity and axisymmetric 2.5D between CAR and the surrounding plates.theoretical waveform modeling has provided insight into theinfluence of topography on waveforms on major boundaries We invite contributions on any aspect of seismic structure,including the transition zone and core-mantle boundary. plate structure, deformation, seismicity and geodynamics inThis broad session invites submissions from observational or and around the Caribbean.theoretical studies in seismology, geophysics and geodynamicsexploring Earth’s mantle. Session Chairs: Alan Levander ([email protected]), Fenglin Niu ([email protected]). Session Chairs: Elizabeth A. Vanacore ([email protected]), Fenglin Niu ([email protected]). Testing PSHA Input Data, Source Models and Hazard EstimatesStructure and Geodynamics of the Caribbean Many open, transparent probabilistic seismic hazard assessmentPlate Boundaries (PSHA) models have become available, each involving manyThe Caribbean plate (CAR) is unusual for a number of types of input data and assumptions. To inspire confidence,reasons. The region’s history includes numerous destructive their input data, source models (i.e., earthquake forecasts) andlarge magnitude earthquakes and tsunamis. An intermediate hazard estimates require rigorous testing and validation.sized plate (3.3x106 km2), CAR is surrounded on its north,east and south by the much larger American plates, but since UCERF3, the most advanced and comprehensive earthquakemuch of CAR is a large igneous province (LIP), its buoyancy forecast ever, serves as an important example of a PSHA sourcemakes it difficult to subduct. As a consequence, it is girdled model. It uses earthquake history, geologic fault data, geodeticby inward directed subduction zones; the Antilles on the east, and geologic strain rates and many assumptions. It is usedthe Puerto Rico Trench in the northeast and the Central in the US National Seismic Hazard Maps and the UniformAmerican Trench on the west. Further, the large El Pilar-San Building Code. With 1440 logic tree branches in just the time-Sebastian strike-slip system along northeastern South America independent models, it calculates off-fault epicenter rate density(SA) connects the southern Antilles trench to the Southern and rates of about 250,000 fault rupture scenarios, offeringCaribbean Deformed Belt and a poorly defined subduction targets to evaluate the internal consistency and influence ofzone in northwestern SA, at which CAR subducts beneath model parameters and data values.northern Colombia and western Venezuela. The flat CARsubduction has created the Merida Andes, Perija and Santa We welcome contributions to testing PSHA input data,Marta uplifts. Since the SA plate is subducting beneath including earthquake history, paleo-seismic event rates,CAR at the southern Antilles subduction zone and CAR is geological and geodetic fault slip rates; strategies for integratingsubducting southeastward beneath western SA, the two plates those data into source models; ground motion predictionare subducting beneath one another. The number and volume equations; and resulting hazard estimates.of plates descending beneath CAR as imaged in differenttomography studies (e.g., Bezada et al, JGR, 2010 and Van Session Chairs: David D. Jackson ([email protected]), Yufang Rong ([email protected]), Harold Magistrale ([email protected]), Jeremy Zechar ([email protected]). 35

SEISMOLOGY OF THE AMERICASTsunami Outreach, Education and Warning between the engineering and seismological communities isDissemination: Cross-disciplinary Opportunities mutually beneficial. This session aims to bring together thesefor Increasing Tsunami Resiliency communities to increase communication of new developmentsTsunami-vulnerable areas continue to grow as coastal in targeting and understanding sources of uncertainty ordevelopment expands and more people reside in tsunami-at-risk variability in ground motion estimation, as well as workingareas. However, as time passes from the last major ocean-wide towards quantifying and reducing uncertainty for appicationstsunami in 2011, the urgency for and attention on tsunami of seismic hazard assessment.risk reduction has taken a back seat to more recent events suchas hurricanes, wildland fires and earthquakes. This session We welcome studies focused on understanding theprovides a broad forum for tsunami outreach, education and foundations of variability in the seismological processes orwarning studies and related mitigation efforts. We particularly parameters affecting ground motion estimation (earthquakeinvite contributions from researchers working across source parameters, source characterization, etc.), on improvingdisciplines, including multi hazard frameworks, that involve crustal models and techniques for ground motion simulations,solutions to evacuation and warning issues and have addressed on methods of quantifying uncertainty in seismologicalhow other more recent events such as hurricanes can be used to processes, as well as on strategies for reducing aleatorypromote tsunami resilience and risk reduction. uncertainty as represented in ground motion prediction equations and probabillistic seismic hazard analysis. Session Chairs: Lori Dengler ([email protected]),Christa G. von Hillebrandt-Andrade ([email protected]), Session Chairs: Valerie J. Sahakian ([email protected]),Rick I. Wilson ([email protected]). Annemarie S. Baltay ([email protected]), Kathryn E. Wooddell ([email protected]).Tsunami Modeling and Hazard AssessmentMany recent advances have been made in the fields of tsunami Urban Liquefaction and Lateral Spreadmodeling and hazard assessment. For example, the U.S. Investigations and MappingNational Tsunami Hazard Mitigation Program has sponsored Liquefaction and lateral spreading are major coseismicbenchmarking workshops on the numerical modeling of geohazards that have an especially large impact on lifelines, intsunami propagation and inundation, tsunami currents and particular when they occur in urban areas. A number of recenttsunamigenic landslides. In addition, the study of tsunami events (e.g. Christchurch, New Zealand and the recent 2017hazard has evolved to include loss estimates and mitigation Mexico City event) demonstrate that further geological andmeasures, and tsunami hazard analysis is scheduled to become geotechnical investigations and models are required to betterpart of the building codes in several states in the next few understand where liquefaction and lateral spreading will takeyears. There has been an increase of capabilities for tsunami place in order to avoid or design to mitigate these coseismicrisk reduction for the Pacific, Caribbean and adjacent regions. hazards. This session focuses on urban liquefaction and lateralWe also seek contributions on how to address, in a consistent spread investigations and mapping efforts to better understandfashion, seismic source definition for seismic and tsunami occurrence and recurrence of this strong-ground motionhazard assessments. This session will provide a forum for all derived geohazard. The field of liquefaction hazard mappingaspects of tsunami modeling and hazard assessment and also has advanced substantially since initial projects in the 1980sfor studies of tsunamis with a non-megathrust source. through 1990s established the practice. This session is focused on reviewing advances brought about by documentation of Session Chairs: Stephanie L. Ross ([email protected]), effects from earthquakes over the past few decades and ongoingSilvia Chacón ([email protected]), Juan J. Horillo advances and application of new technologies and analytical([email protected]), Alberto Lopez ([email protected]), understanding.Hong Kie Thio ([email protected]). Specific topics of interest include integration of remoteUncertainty in Ground Motion Estimation; sensing exploration (lidar, satellite observations, etc) of recentSeismological and Engineering Perspectives liquefaction and lateral spreading, in addition to geologicalQuantifying, understanding sources of, and reducing (trenching), geotechnical (CPT and drilling) and geophysicaluncertainty in, methods of ground motion estimation (e.g. shear wave, seismic reflection or refraction mapping,are critical for improving seismic hazard assessment, as resistivity or radar) investigations to advance the predictivewell as for working towards an understanding of the capabilities of hazard mapping. Also of interest are comparativeunderlying seismological processes behind ground motion. studies between predictive hazard maps and actual occurrenceLarge uncertainty has often plagued estimates of physical of damaging liquefaction to assess the effectiveness of currentparameters; it is important to reduce this uncertainty to mapping techniques.discern the underlying seismological trends. Collaboration Session Chairs: Gregory P. De Pascale (snowyknight@gmail. com), Jeffrey Bachhuber ([email protected]).36

14–17 MAY 2018 MIAMI, FLORIDAU.S. Geological Survey Seismic Hazard User-Needs U.S. National Seismic Hazard Model Updates:The U.S. Geological Survey (USGS) National Seismic HazardModeling Project (NSHMP) invites our user community to 2018, 2020 and Beyondpresent how they use the National Seismic Hazard Models The U.S. Geological Survey (USGS) National Seismic Hazardand resulting products, such as hazard curves, ground motion Models (NSHMs) are a bridge for translating “best-available”maps, deaggregations, web services, computer codes, catalogs earthquake science into public policy. Historically, the NSHMand source parameter data. Considering future updates in for the conterminous U.S. has been updated every six years. The2020 and beyond, and possibly including one-year forecasts 2018 update will be a four-year update. Compared to the six-yearfor induced seismicity, the NSHMP would like to know more cycle, the 2018 update will have fewer changes, thereby distributingabout how the user community uses its products and thereby sensitivity testing that becomes difficult when numerous changeshow the models might need to be improved. In addition to are considered at once. This session focuses on the 2018, 2020 andchanges to current products, we would also like to know future updates to the conterminous U.S. model. The deadline forwhat additional products would be helpful. Although the any suggested modifications or additions to be considered to thestructural engineering community is the primary user of the 2018 model has passed; during this session we will summarize theNational Seismic Hazard Models, many members of the SSA scientific improvements in the 2018 model and discuss the outcomecommunity consider the models and their components, in of the USGS 2018 NSHM update workshop (March 2018) ina broad array of research and industry applications, such as California. Looking forward, the deadline for published researchliquefaction and landslide stability studies and insurance to be included into the 2020 model is quickly approaching (Junerisk assessments. 2018). For this session, we invite contributions in all topics and areas that will influence future hazard models, for example: NGA- Session Chairs: Susan M. Hoover ([email protected]), East, NGA-Subduction, physics-based ground motion modelsNico Luco ([email protected]), Peter M. Powers (3D simulations) and source models (UCERF4), source model([email protected]), Sanaz Rezaeian ([email protected]). implementations, directivity methods, fault characterizations, scaling equations, site amplifications and catalogs, among ­others. Session Chairs: Allison M. Shumway ([email protected]), Susan M. Hoover ([email protected]), Morgan P. Moschietti ([email protected]), Mark D. Petersen ([email protected]), Peter M. Powers ([email protected]).GENLYE8R-A1L8 ASSEMBLY C JUILLET 20 ANADA 19IN TE R N ATMIO NOAL UNNIOTN ORF GEEOA LD27 TH IUGG JU TA L EGÉOPDHYSEIQUELIN'TEURNGATIOGNAILE ESYAND GÉODÉSIQUE E2 7 A S S E M B L É E G É N É ReGEOPHYSICS|UNION JULY | JUILLET 8-18 / 2019 IUGG2019MONTREAL.COM 37

SEISMOLOGY OF THE AMERICASOVERVIEW OF TECHNICAL PROGRAMORAL SESSIONSTuesday, 15 May Time Brickell Flagler Hibiscus A Hibiscus B 8:30– Numerical Modeling Interaction between Tsunami Modeling and Essentials of Seismic Risk Observations and Models Hazard Assessment Estimates 9:45 AM of Earthquake Ground in Seismo-Volcanic Studies Motion, Rupture Dynamics and Seismic10:45 AM– Wave Propagation Noon 2:15– Fault to Seismic Hazard Advances in the Theory, Urban Liquefaction Environmental Seismology:3:30 PM Assessment (Fault2SHA) Modeling, and Observation and Lateral Spread Glaciers, Rivers, Landslides of Anelastic Seismic Wave Investigations and Mapping and Beyond in Latin (Central and Propagation—Recent South) America Anelastic Models of the 4:15– Earth Ground Motion and5:30 PM Earthquake Engineering5:30–6 PM Pint and Poster, Riverfront South6–7 PM Lightning Talks, Riverfront North7–9 PM also Special Interest Group: Articulating the Mission of State and Regional Earthquake Centers, Tuttle Early-Career and Student Reception, Upper PromenadeWednesday, 16 MayTime Brickell Flagler Hibiscus A Hibiscus B 8:30– Exploring Rupture Structure and Dynamics of U.S. National Seismic Ocean Bottom9:45 AM Dynamics and Seismic Earth’s Mantle Hazard Model Updates: Seismology—Hurdles, Wave Propagation along Development and Validation 2018, 2020 and Beyond Strategies and Outcomes10:45 AM– Complex Fault Systems of Statistical Models of Microzonation Studies— Noon Site Effects Small-Scale Heterogeneities 2:15– Observations and the Observed Characteristics of Testing PSHA Input Data,3:30 PM Physics Behind Complex Induced Seismicity: From Source Models and Hazard Laboratory to Field Scale Estimates Earthquakes 3:30– Pint and Poster, Riverfront South4:15 PM 4:15– New Frontiers in Seismic Observed Characteristics of Seismic Structure of Microzonation Studies—5:30 PM and Acoustic Data Analysis Induced Seismicity: From Convergent Plate Margins Site Effects Laboratory to Field Scale (continued Thursday) 5:30– Joyner Lecture, Riverfront North6:30 PM6:30–8 PM LACSC/SSA Reception, Upper & Lower Promenade8–9 PM LACSC Public General Assembly, Brickell8–9:30 PM Women in Seismology Reception, Japengo38

14–17 MAY 2018 MIAMI, FLORIDATime Jasmine Monroe Orchid AB Tuttle8:30– Regional Seismic Advances in Seismic Onshore Quaternary and 3D/4D Seismic Imaging9:45 AM Network Approaches and Site Response Studies Contemporary Tectonics: and Their Interpretation Stakeholder Collaborations Given Limitations in Implications for Seismic for Seismic Hazard Understanding of Site Hazards Assessment Conditions10:45 AM– The Next Big Earthquake:Noon The Usual and the Unusual Suspects 2:15– Advances in Explosion Science Gateways and Megathrust Earthquakes:3:30 PM Seismo-Acoustic Research Computational Tools for Recurrence, Rupture Improving Earthquake Modes and Tsunamis 4:15– Research (continued Wednesday)5:30 PM5:30–6 PM Pint and Poster, Riverfront South6–7 PM Lightning Talks, Riverfront North7–9 PM also Special Interest Group: Articulating the Mission of State and Regional Earthquake Centers, Tuttle Early-Career and Student Reception, Upper PromenadeTime Jasmine Monroe Orchid AB Tuttle Seismic Event Screening (Continued from Tuesday)8:30– Early Warning for Large Recent Advances in Dense Megathrust Earthquakes:9:45 AM Earthquakes and Tsunamis: Array Seismology Recurrence, Rupture Challenges, Case Studies Modes and Tsunamis10:45 AM– and Innovations Noon 2:15– Real-Time GNSS Network Advances on the Present-Day Plate Boundary The Future of Telemetered 3:30 PM Operations and Advances Parameterization of Deformation and Seismic Seismic Arrays—Where the Seismic Attenuation: Hazard in the Caribbean Operation of the Network towards Early Warning Current Challenges and Systems Opportunities Ends and the Science Begins 3:30– 4:15 PM Pint and Poster, Riverfront South 4:15– Real-Time GNSS Network Advances on the Parameter- Seismic Hazards and The Future of Telemetered 5:30 PM Operations and Advances ization of Seismic Attenu- Historic Earthquakes Seismic Arrays—Where the ation: Current Challenges in Puerto Rico and the Operation of the Network towards Early Warning and Opportunities Northern Caribbean Region Ends and the Science Begins Systems 5:30– Joyner Lecture, Riverfront North 6:30 PM6:30–8 PM LACSC/SSA Reception, Upper & Lower Promenade 8–9 PM LACSC Public General Assembly, Brickell8–9:30 PM Women in Seismology Reception, Japengo 39

SEISMOLOGY OF THE AMERICASThursday, 17 May Time Brickell Flagler Hibiscus A Hibiscus B (Continued from USGS Seismic Hazard Increasing Testability— 8:30– Tsunami Outreach, Wednesday) Observed User-Needs Expanding Possibilities 9:45 AM Education and Warning Characteristics of and Future Developments Induced Seismicity: From Applications of Machine of the Collaboratory for Dissemination: Cross- Laboratory to Field Scale Learning and Data Science the Study of Earthquake disciplinary Opportunities in Seismology Predictability for Increasing Tsunami Seismic Studies of Earth’s Uncertainty in Ground Resiliency Crust and Lithosphere Motion Estimation:10:45 AM– The Recent Earthquakes Seismological and Noon that Shocked Mexico in Engineering Perspectives September 2017 1:30– 2:45 PM 2:45– Pint and Poster, Riverfront South3:45 PM3:45–5 PM The 8th September ShakeMap-Related Forecasting Aftershock Mw8.2 Tehuantepec Research, Development, Sequences in the Real and 19th September Operations and World Mw7.1 Puebla-Morelos, Applications Mexico Earthquakes: Reconnaissance Findings and Impact on Urban Areas in South-central Mexico5:30 PM Cruise, Riverwalk40

14–17 MAY 2018 MIAMI, FLORIDA Time Jasmine Monroe Orchid AB Tuttle 8:30– Earthquake Source Retrieval of Fine Scale Structure and Geodynamics Information Using Seismic of the Caribbean Plate 9:45 AM Parameters: Theory, Noise Boundaries Observations and Plate Boundary Interpretations Emergency Management, Segmentation and Coupled- Resilience and Preparedness to-Creeping Plate and10:45 AM– Block Boundary Faults Noon Adaptation of New 1:30– Technologies and Methods Plate Boundary to Drive New Discoveries Segmentation and Coupled- 2:45 PM in Seismology and Geodesy to-Creeping Plate and Block Boundary Faults 2:45– Pint and Poster, Riverfront South 3:45 PM Challenges and Chances3:45–5 PM Earthquake Source for the Widespread Implementation of Parameters: Theory, Earthquake Early Warning Observations and (EEW) Interpretations5:30 PM Cruise, Riverwalk 41

SEISMOLOGY OF THE AMERICASPOSTER SESSIONS • Real-Time GNSS Network Operations and Advances towards Early Warning SystemsTuesday, 15 May • Recent Advances in Dense Array Seismology• 3D/4D Seismic Imaging and Their Interpretation • Seismic Event Screening for Seismic Hazard Assessment • Present-Day Plate Boundary Deformation and Seismic• Advances in Explosion Seismo-Acoustic Research Hazard in the Caribbean• Advances in Seismic Site Response Studies Given • Seismic Hazards and Historic Earthquakes in Puerto Rico Limitations in Understanding of Site Conditions and the Northern Caribbean Region• Ground Motion and Earthquake Engineering • Seismic Structure of Convergent Plate Margins• Environmental Seismology: Glaciers, Rivers, • Structure and Dynamics of Earth’s Mantle • Testing PSHA Input Data, Source Models and Landslides and Beyond• Fault to Seismic Hazard Assessment (Fault2SHA) Hazard Estimates • U.S. National Seismic Hazard Model Updates: in Latin (Central and South) America• Interaction between Observations and Models in 2018, 2020 and Beyond Seismo-Volcanic Studies Thursday, 17 May• Numerical Modeling of Earthquake Ground Motion, • The 8th September Mw8.2 Tehuantepec and 19th Rupture Dynamics and Seismic Wave Propagation September Mw7.1 Puebla-Morelos, Mexico Earthquakes:• Onshore Quaternary and Contemporary Tectonics: Reconnaissance Findings and Impact on Urban Areas in South-central Mexico Implications for Seismic Hazards• The Next Big Earthquake: The Usual and the • Adaptation of New Technologies and Methods to Drive New Discoveries in Seismology and Geodesy Unusual Suspects• Regional Seismic Network Approaches and • Applications of Machine Learning and Data Science in Seismology Stakeholder Collaborations• Science Gateways and Computational Tools for • Challenges and Chances for the Widespread Implementation of Earthquake Early Warning (EEW) Improving Earthquake Research• Tsunami Modeling and Hazard Assessment • Earthquake Source Parameters: Theory, Observations and InterpretationsWednesday, 16 May • Emergency Management, Resilience and Preparedness• Advances on the Parameterization of Seismic Attenuation: • Forecasting Aftershock Sequences in the Real World Current Challenges and Opportunities • Increasing Testability—Expanding Possibilities and• Development and Validation of Statistical Models of Future Developments of the Collaboratory for the Study Small-Scale Heterogeneities of Earthquake Predictability • Observed Characteristics of Induced Seismicity:• Early Warning for Large Earthquakes and Tsunamis: From Laboratory to Field Scale Challenges, Case Studies and Innovations • Plate Boundary Segmentation and Coupled-to-Creeping Plate and Block Boundary Faults• Exploring Rupture Dynamics and Seismic Wave • Retrieval of Fine Scale Information Using Seismic Noise Propagation along Complex Fault Systems • Seismic Studies of Earth’s Crust and Lithosphere • ShakeMap-Related Research, Development, Operations• The Future of Telemetered Seismic Arrays—Where the and Applications Operation of the Network Ends and the Science Begins • Structure and Geodynamics of the Caribbean Plate Boundaries• Megathrust Earthquakes: Recurrence, Rupture Modes • Uncertainty in Ground Motion Estimation: and Tsunamis Seismological and Engineering Perspectives• Microzonation Studies—Site Effects• New Frontiers in Seismic and Acoustic Data Analysis• Observations and the Physics Behind Complex Earthquakes• Ocean Bottom Seismology—Hurdles, Strategies and Outcomes42

14–17 MAY 2018 MIAMI, FLORIDA JOIN OUR MEETING Make Discovery and Scientific Progress Together Let’s put our minds together and advance our science at the 2018 Joint Meeting of the Canadian Geophysical Union, Canadian Soil Science Society, Computational Infrastructure in Geodynamics, Eastern Section of the Seismological Society of America and Canadian Society for Agricultural and Forest Meteorology.NIAGARA FALLS BUSINESS EVENTS 10–14 JUNE 2018 • NIAGARA FALLS, ONTARIO More information: https://meeting2018.cgu-ugc.ca General inquiries: [email protected] JOIN OUR CAUSE Support the Next Generation of Scientists Members of the Eastern Section-SSA advance the science of the seismology of Eastern North America, intraplate seismology and the careers of emerging scientists. Join today for just $20—annual dues that support student travel grants and other awards to acknowledge student excellence. Visit seismosoc.org/membership/ and select membership in Eastern Section. Already renewed for SSA? Contact the Society at [email protected] or 510-525-5474 to amend your SSA membership to include the Eastern Section. For more information, visit seismosoc.org/eastern-section. 43

SEISMOLOGY OF THE AMERICASTECHNICAL PROGRAMTuesday, 15 May—Oral SessionsPresenting author is indicated in bold.Time Brickell Flagler Hibiscus A Hibiscus B Tsunami Modeling and Essentials of Seismic Risk Numerical Modeling Interaction between Hazard Assessment Estimates of Earthquake Ground Observations and Models Session Chairs: Stephanie L. Session Chairs: Max Wyss, Motion, Rupture Dynamics in Seismo-Volcanic Studies Ross, Silvia Chacón, Juan J. Sergio Barrientos, and and Seismic Wave Session Chairs: Mario C. Horillo, Alberto Lopez, and Ramón Zúñiga Propagation Ruiz and Mauricio Mora Hong Kie Thio Session Chairs: Peter Moczo, Steve M. Day, and Jozef Kristek8:30 AM A Computational Model of Invited: Interpreting Invited: Benchmarking Attribute Index and the Seismic Response in the Seismic Signals and Processes Multilayer-Hysea Model Classification Method of Valley of Mexico after the at Active Volcanic Systems. for Landslide Generated Earthquake Damage Photos Damaging M 7.1 Earthquake McNutt, S. R. Tsunamis. Macías, J., for Seismic Risk. Lu, M. of September 19, 2017. Cruz- Escalante, C., Castro, M. J. Atienza, V. M., Villafuerte, C. D., Tago, J., Chaljub, E., Sanabria-Gomez, J. D.8:45 AM A Unified Discrete Monitoring Nyiragongo’s Invited: The Probabilistic Defense Nuclear Facilities Representation of the Elastic, Lava Lake Activity (D.R. Tsunami Hazard Assessment Safety Board Natural Viscoelastic, and Poroelastic Congo) Using Seismic, Map for the Neam Region: Phenomena Hazard Interface and Strong Material Infrasound and SAR Results of the Tsumaps-Neam Database. Li, Y. L., Heterogeneity in the Finite- Measurements. Barrière, Project. Basili, R. Schleicher, L. S. Difference Modeling of J., D’Oreye, N., Oth, A., Seismic Wave Propagation. Geirsson, H., Mashagiro, Moczo, P., Gregor, D., N., Johnson, J. B., Smets, B., Kristek, J. Kervyn, F.9 AM Numerical Simulation of M9 Invited: Seismo-Acoustic Testing Empirical Inundation Exploring the Uncertainty Megathrust Earthquakes Wavefield of Strombolian in the Definition of of Earthquake Catastrophe in the Cascadia Subduction Explosions at Yasur Volcano, Inundation Zones for Models Through a Risk Zone. Roten, D., Olsen, K. B., Vanuatu, Using a Broadband Tsunami Early Warning. Assessment Study in Central Takedatsu, R. Seismo-Acoustic Network. Tonini, R., Lorito, S., Di America Using Openquake Matoza, R. S., Chouet, B., Manna, P., Selva, J., Volpe, and a Vendor Cat Model. Dawson, P., Jolly, A., Fee, D., M., et al. Mouyiannou, A., et al. Kalakonas, P.9:15 AM Student: Can Triggered Invited: Very Long Period A Probabilistic Tsunami Student: Probabilistic and Induced Earthquakes be and Short Period Eruption Hazard Model for New Seismic Hazard Analysis Supershear Rupture Events? Seismograms and Progressive Zealand. Ali, S. T., in Mexico City Using A Numerical Investigation. Conduit Changes at Erebus Barberopoulou, A., Yang., W., Synthetic Seismograms and Jin, L., Zoback, M. D. Volcano, Antarctica. Shen-Tu, B., Mahdyiar, M., Three-Dimensional Models. Aster, R. C., Knox, H. A., Klein, E. C. Martínez, B., Ramírez- Chaput, J. A., Kyle, P. R. Guzmán, L., Leonardo- Suárez, M.44

14–17 MAY 2018 MIAMI, FLORIDATime Jasmine Monroe Orchid AB TuttleRegional Seismic Advances in Seismic Onshore Quaternary and 3D/4D Seismic ImagingNetwork Approaches and Site Response Studies Contemporary Tectonics: and Their InterpretationStakeholder Collaborations Given Limitations in Implications for Seismic for Seismic HazardSession Chairs: Michael Understanding of Site Hazards AssessmentWest, Sergio Barrientos, Paul Conditions Session Chairs: Lucille Piety Session Chairs: Marco PilzBodin, Victor A. Huérfano, Session Chairs: Emel Seyhan, and Joanna Redwine and Nori NakataXyoli Pérez-Campos, and Sean K. Ahdi, Eric M.Alexandros Savvaidis Thompson, and Alan Yong8:30 AM Low-Cost Seismic Data Can the Earthquake Site Invited: Quaternary Faults Student: ComparisonAcquisition Module Based on Response Be Predicted by the in the Vicinity of Puerto Rico between Frequency and TimeOpen-Source Hardware and Ambient Noise Amplitude? and the Virgin Islands and Domain Cross-Correlation ofSoftware Tools. Ramdeane, A., Insight from Two Case Their Seismic Hazard. ten Seismic Noise Data in SouthMcGillivary, K., Lynch, L. L. Studies. Perron, V., Gélis, C., Brink, U. S., Chaytor, J. D. Korea. Del Valle-Rosales, Froment, B., Hollender, F., M., Chávez-García, F. J., Bard, P. Y., et al. Kang, T. S.8:45 AM Near Real-Time Network- Application of Near-Source Guaicaramo Fault Enhancement of Body Wide Station State of Health Factors to Deterministic System, Boyaca, Casanare, Wave Signals in the Coda of and Waveform Quality Response Spectra. Hudson, Cundinamarca and Meta Seismic Noise Interferometry Monitoring. Hutko, A. R., K. H., Hudson, M. B. Departments, Colombia: through Random Fluctuation Hartog, J. R., Marczewski, A Review. Chicangana, Suppression. Liu, X., K., Connolly, J., Reusch, M., G., Bocanegra, A., Vargas Beroza, G. C. Bodin, P. Jimenez, C. A., Kammer, A., Arboleda, L.9 AM Local and Regional The Characteristics of κ0 in Marine Terraces and Single-Station Imaging of a Earthquake Solutions from Longmenshan Region and Quaternary Tectonic Uplift in Low-Velocity Layer Using Joining Raspberry Shake and Its Application in Estimation Puerto Rico. Prentice, C. S., Reflected Waves from the International Seismological of Source, Path, and Site Muhs, D. R., Simmons, K. R., 2014 Earthquake Swarm Stations. Blanco Chia, J. F., Parameters. Fu, L., Li, X. J., Schumann, R., Joyce, J. at Long Valley Caldera, Christensen, B. Chen, S. California. Nakata, N., Shelly, D. R.9:15 AM Virtual Seismic Networks Accounting for Vs Holocene Surface Rupture Seismic Imaging of the – Case Studies in Europe Uncertainty in Seismic Site on the Salinas Fault and the West Napa Fault in Napa, and the Arabian Peninsula. Response Analyses Using the Southeast Great Southern California. Goldman, M. R., Franke, M. Experimental Site Signature: Puerto Rico Fault Zone Catchings, R. D., Chan, J. A Case Study of the Garner and Implication for Seismic H., Sickler, R. R., Nevitt, J., Valley Downhole Array. Hazard Assessments. Criley, C. J. Cox, B. R., Teague, D. P., Piety, L. A., Redwine, J. R., Rathje, E. M. Prentice, C. S., Derouin, S. A., Kelson, et al. 45

SEISMOLOGY OF THE AMERICASTuesday, 15 May (continued)Time Brickell Flagler Hibiscus A Hibiscus B Essentials of Seismic Risk Numerical Modeling Interaction between Tsunami Modeling and Estimates of Earthquake Ground Observations and Models Hazard Assessment Seismic Risk Assessment Motion, Rupture… in Seismo-Volcanic Studies in Areas with Low-Quality Data: The Case of the9:30 AM Developments in Propagation Monitoring Recent Unrest Simulation of PDC 2017 Jama-Pedernales 7.8 Mw of Seismic Waves with the of Sierra Negra Volcano, Asteroid Ocean Impact, Earthquake and the Generalized Finite Difference Galápagos Islands. Ruiz, M. Tsunami Generation, and Detailed Study of Portoviejo Method: Application at C., Amelung, F., Mothes, P. A., Consequences on Japan’s (Ecuador)—Part 1: Data Interfaces. Ureña, M., Salete, Pacheco, D. A., Palacios, P. B., Coastlines. Ezzedine, S., Processing. Marrero, J. M., E., Benito, J. J., Ureña, F., et al. Dearborn, D., Miller, P., Yepes, H. A., Palacios, P. B., Gavete, L. Oman, L., Koshimura, S. Ramón, P. 9:45– Posters and Break Essentials of Seismic Risk10:45 AM Estimates (continued) Numerical Modeling of Interaction between Tsunami Modeling and Earthquake Ground Motion, Observations and Models Hazard Assessment Rupture Dynamics and in Seismo-Volcanic Studies (continued) Seismic Wave (continued) (continued)10:45 AM Influence of Normal Pressure Automatic Detection and Invited: Field Survey of Seismic Risk Assessment on the Stick-Slip Behavior Location of Seismo-Volcanic the 1946 Tsunami in the in Areas with Low- of Sheared Granular Fault Signals Based on the Seismic Dominican Republic Based Quality Data: The Case Gouge Using the Combined Network Covariance Matrix: on Eyewitness Interviews. of Jama-Pedernales 7.8 Finite-Discrete Element Examples from Tenerife Fritz, H. M., Rivera, W. E., Mw Earthquake and the Method. Gao, K., Rougier, E., (Canary Islands) and the Salado, J., Martinez, C. Detailed Study of Portoviejo Euser, B. J., Guyer, R. A., Klyuchevskoy Volcanic (Ecuador)—Part 2: Risk Johnson, P. A., et al. Group (Kamchatka). Quantification. Yepes, H. A., Soubestre, J., Barrancos, J., Marrero, J. M., Palacios, P. B., D’Auria, L., Padilla, G. D., Ramón, P. Shapiro, N. M., et al.11 AM EDGE: Towards Extreme- Student: Seismicity of the Tsunami Mitigation Mapping Seismic Risk Assessment Scale Nonlinear Earthquake Lazufre Volcanic System, Effort in the Gulf of Mexico. for British Columbia, Simulations. Breuer, A., Northern Chile/Argentina. Juan Horrillo, J. Canada, through the Use of Heinecke, A., Cui, Y. McFarlin, H. L., McNutt, Global Earthquake Model’s S. R., Braunmiller, J., OpenQuake. Bird, A. L., Thompson, G. Journeay, J. M., Hastings, N., Cassidy, J. F.11:15 AM Modeling of Seismic Similar Seismicity at Turrialba Long-Lived Tsunami Edge Student: The Gutenberg- Liquefaction Effects on and Poas, Costa Rica: What Waves during the 2017 Richter Law and Structure in the City Can It Tell Us? Salvage, R. O., M8.2 Tehuantepec, Mexico, Completeness of the RSN of Medellin, Colombia. Pacheco-Alvarado, J. F., Earthquake and Their Earthquake Catalog, Costa Montoya-Noguera, S., Brenes-Marin, J. Implications for Hazards. Rica. Arroyo Solórzano, M., Lopez-Caballero, F. Melgar, D., Ruiz-Angulo, Linkimer, L. A., Ramirez-Herrera, M. T., Corona Morales, N., Zavala-Hidalgo, J.46

14–17 MAY 2018 MIAMI, FLORIDATime Jasmine Monroe Orchid AB Tuttle Regional Seismic Advances in Seismic Site Onshore Quaternary and 3D/4D Seismic Imaging Network Approaches and Response Studies Given Contemporary Tectonics… and Their Interpretation Stakeholder Collaborations Limitations… for Seismic Hazard…9:30 AM Geophysical Networks in Student: Development of Active Plate Tectonics and Tomographic Imaging of the Peru: A National Effort a United States Community Main Fault Systems in Central California Crust for Earthquake Disaster Shear Wave Velocity Profile Colombia: An Updated with Multiple Methods. Management. Norabuena, Database. Ahdi, S. K., Model for 3D Fault Thurber, C. H., Nayak, A., E. O., Oliva, J. C., Salazar, J. E. Stewart, J. P., Kwak, D. Y., Geometries and Magnitudes. Fang, H., Zeng, X., Zhang, H. Yong, A., Sadiq, S., et al. Tobón López, A. M., Herrera García, D. C., Yamin, L. E., Tary, J. B. 9:45– Posters and Break10:45 AM Regional Seismic Advances in Seismic The Next Big Earthquake: 3D/4D Seismic Imaging Network Approaches and Site Response Studies The Usual and the Unusual and Their Interpretation Stakeholder Collaborations Given Limitations in Suspects for Seismic Hazard (continued) Understanding of Site Session Chairs: Sinan O. Assessment (continued) Conditions (continued) Akciz and Kate Scharer10:45 AM The Brazilian Seismographic Which Site Proxy Should Invited: Paleo Earthquakes, Student: Crustal Structure Network: Present Status and We Use in Ground-Motion Historical-Prehistorical beneath Seismic Stations Society Related Applications. Models? Sandikkaya, M. A. Warnings, Surface Ruptures, Located in Paraná and Collaço, B. B., Bianchi, M., and Unsuspected Active Chaco-Paraná Basins Assumpção, M. A., Calhau, J. Faults in Peru and Ecuador. from Joint Inversion of C., Barbosa, J. R., et al. Audin, L., Benavente Surface Wave Dispersion Escobar, C. L., Alvarado, A., and Receiver Functions. Zerathe, S., Hall, S. R., et al. Christiansen, L. A., Rosa, M. L.11 AM The National Seismological Student: Integration of Hazards from the Sea: Student: Does the Network of Costa Rica (Rsn): Site Effects Into PSHA: A Rupture Scenarios for the San Integration of Two Different An Overview and Recent Comparison between Two Diego Trough and San Pedro Datasets Affect Tomographic Developments. Linkimer, L., Fully Probabilistic Methods Basin Fault Systems, Offshore Images and Earthquake Arroyo, I. G., Alvarado, G. E., for the Euroseistest Case. Southern California. Location? The Case Study Arroyo-Solórzano, M., Aristizábal, C., Bard, P. Y., Bormann, J. M., Ruhl, C. J., of the High Agri Valley Bakkar, H. Beauval, C., Gómez, J. C. Kent, G. M., Driscoll, N. W. (Southern Italy). Serlenga, V., Stabile, T. A.11:15 AM The Chilean Seismic Application of Non-Ergodic Lidar Reveals New Geometry of the Los Angeles Network: Recent Advances. Site Response for a Unique Geomorphic Evidence of Basin Using Full H/V Barrientos, S. E. Facility in Los Angeles, Shaking and Slip on the Spectral Ratio Inversion. California. Teague, D. P., Reelfoot Fault in the New Spica, Z., Perton, M., Heidarzadeh, B., Wurman, G., Madrid Seismic Zone, Beroza, G. C. Espinosa, P. J., Stewart, J. P. Western Tennessee, USA. Delano, J. E., Gold, R. D., Briggs, R. W., DuRoss, C. B., Jibson, R. W. 47

SEISMOLOGY OF THE AMERICASTuesday, 15 May (continued)Time Brickell Flagler Hibiscus A Hibiscus B Essentials of Seismic Risk Numerical Modeling Interaction between Tsunami Modeling and Estimates of Earthquake Ground Observations and Models Hazard Assessment Motion, Rupture… in Seismo-Volcanic Studies Student: Toward a Unified Metric for Sufficiency11:30 AM Strong Motion Simulation for Analysis of Seismic Signals Tsunami Threat Assessment and Efficiency of Scalar the 2004 Southwest-Off Kii from Cotopaxi Volcano for the North and Central Earthquake Intensity Peninsula Earthquake with Using Variational Mode Pacific Coast of Costa Rica. Measures. Dhulipala, S., Pseudo Point-Source Model. Decomposition (VMD). Chacon-Barrantes, S. E., Flint, M. M. Nozu, A. Proaño, E., Benítez, D. S., Arozarena-Llopis, I. Lara-Cueva, R. A., Ruiz, M. C.11:45 AM Student: Kinematic Source Seismicity Constraints on Student: Pedestrian Discussion Models for Earthquake Fault-Magma Interactions and Evacuation Analysis in Simulations with Fault-Zone Stress Field Rotation in an Case of Tsunami for the Plasticity. Hu, Z., Roten, D., EaWrly-IStTagHe CDonRtineAntWal RNift. Puerto Rico Municipalities Olsen, K. B., Day, S. M. Ebinger, C. J., Oliva, S. J., of Aguadilla, Arecibo and Roecker, S. W., Wauthier, C. Ponce. Severino, V. E., Maldonado, J., Ruiz, R., Vanacore, E. A., Gonzalez, W.Noon– Luncheon: SSA Award Ceremony and Business Meeting 2 PM Fault to Seismic Hazard Advances in the Theory, Urban Liquefaction Environmental Assessment (Fault2SHA) in Modeling, and Observation and Lateral Spread Seismology: Glaciers, Latin (Central and South) of Anelastic Seismic Wave Investigations and Rivers, Landslides and America Propagation—Recent Mapping Beyond Session Chairs: Laurence Anelastic Models of the Session Chairs: Gregory Session Chairs: Bradley P. Audin, Felipe Aron, Earth P. De Pascale and Jeffrey Lipovsky, Kate Allstadt and Marianne Saillard, Laura Session Chairs: Roger D. Bachhuber Rick Aster Peruzza, Franck Audemard Borcherdt and Kristopher A. and Oona Scotti Innanen2:15 PM Invited: South America Invited: On Implications Contemporary and Invited: Environmental Seismic Hazard, Risk, and of Advances in the Theory Paleoliquefaction-Induced Seismology – An Design. Petersen, M. D., of Anelastic Seismic Wave Lateral Spreading Mapping Indispensable Tool to Harmsen, S. C., Jaiswal, K. S., Propagation. Borcherdt, R. D. in Christchurch, New Constrain Drivers, Precursors Rukstales, K. S., Luco, N., Zealand. De Pascale, G. P., and Evolution of Mass Haller, K. M., Mueller, C. S., Bachhuber, J., Rathje, E. M. Wasting Processes. Schöpa, A., Shumway, A. M. Dietze, M., Turowski, J. M., Hovius, N.2:30 PM Invited: General Lateral Spreading Analyses Characterizing Debris Flows Viscoelastic Ray Theory. of the Existing Shoreline at Using Seismic Arrays at the Borcherdt, R. D. Treasure Island. Espinosa, P. J., USGS Debris-Flow Flume. Heidarzadeh, B., Eliahu, U. Allstadt, K. E., Kean, J. W., Iverson, R. M., Smith, J. B., Rengers, F. K., et al.48