T13I:
Three-Dimensional Fault Architecture and Geometrical Segmentation from Fault Observations to Seismic Hazard Assessment II Posters


Submit an Abstract to this Session


Session ID#: 47198

Session Description:
Faults are complex 3D systems, including principal and secondary branches and steps, varying material properties, local and regional stress heterogeneities, and fluid effects. How these properties control the behavior of earthquake rupture and propagation (or arrest) is the question of ongoing research, and holds important implications for seismic hazard assessment. In this session, we are interested in the relationships between complex fault architecture, geometric configurations, and local fault properties, and earthquake source characterization and seismic hazard.  We welcome recent mapping studies of complex fault systems, empirical studies analyzing the behavior of historical earthquakes in such complex fault zones, and numerical and laboratory models of rupture propagation cascading across or being arrested by stepovers, bends, fault branches and other geometrical fault complexities. Finally, we encourage studies showing the seismic hazard implications of these results, as well as methods of estimating or representing multi-fault ruptures in seismic hazard models.
Primary Convener:  Valerie J Sahakian, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Conveners:  Isabelle Manighetti, Université Côte d’Azur, Géoazur, Sophia Antipolis, France, Ruth Harris, U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States and Neal W Driscoll, Scripps Institution of Oceanog, La Jolla, CA, United States
Primary Liaison:  Valerie J Sahakian, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Chairs:  Ruth Harris, U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States and Neal W Driscoll, Scripps Institution of Oceanog, La Jolla, CA, United States
OSPA Liaison:  Ruth Harris, U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States

Cross-Listed:
  • G - Geodesy
  • S - Seismology
Index Terms:

7209 Earthquake dynamics [SEISMOLOGY]
7212 Earthquake ground motions and engineering seismology [SEISMOLOGY]
8110 Continental tectonics: general [TECTONOPHYSICS]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Absence of shallow slip deficit during the Balochistan earthquake (2013, Mw 7.7, Pakistan): insights from SAR and optical-based coseismic slip model (419882)
Benjamin Lauer1, Raphael Grandin2, Yann Klinger3, Amaury Vallage1, Romain Jolivet4 and Arthur Delorme5, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Université de Paris, Institut de Physique du Globe de Paris (IPGP), UMR 7154, Paris, France, (3)Université de Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France, (4)École Normale Supérieure, PSL Research University, UMR 8538, Laboratoire de Géologie, Paris, France, (5)Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, France
Offshore fault geometrics in the Pearl River Estuary, northern South China Sea: evidence from seismic reflection/refraction data (412206)
Jinghe Cao1, Huilong Xu2, Shaohong Xia1, Jinlong Sun2 and Cheng Xiong3, (1)South China Sea Institute of Oceanology, Guangzhou, China, (2)SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, (3)Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
Seismicity of the 2017 north Aegean Sea earthquake sequence (351878)
Ethem Gorgun, Istanbul University - Cerrahpasa, Department of Geophysical Engineering, Istanbul, Turkey, Dogan Kalafat, Kandilli Observatory, Kandilli Observatory and Earthquake Research Institute-Department of Geodesy, Istanbul, Turkey and Kivanc Kekovali, B.U. KANDILLI OBSERVATORY &ERI., Istanbul, Turkey
Slow strain release along the eastern Marmara seismic gap offshore Istanbul in conjunction with enhanced local seismic moment release (385812)
Patricia Martínez-Garzón1, Marco Bohnhoff1, David Mencin2, Grzegorz Kwiatek1, Georg Dresen1, Kathleen Marian Hodgkinson3, Murat Nurlu4, Filiz Tuba Kadirioglu5 and Recai F. Kartal5, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)EarthScope Consortium, Data Services, Remote, United States, (3)UNAVCO, Socorro, NM, United States, (4)Disaster and Emergency Management Presidency (AFAD), Ankara, Turkey, (5)Disaster and Emergency Management Presidency (AFAD), Earthquake Department, Ankara, Turkey
Velocity structure of the Sea of Marmara region from ambient noise and receiver function imaging (411715)
Jennifer Jenkins1, Robert George Green2, Murat Nurlu3 and Marco Bohnhoff1, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Bullard Laboratories, Cambridge, United Kingdom, (3)Disaster and Emergency Management Presidency (AFAD), Ankara, Turkey
Geometry, Kinematics and Segmentation Characteristics of Strike-slip Faults in Halahatang area, North Tarim Basin, NW China: A Study Based on 3D Seismic Data (428856)
Debo Ma, Organization Not Listed, Washington, DC, United States and Dengfa He, China University of Geosciences Beijing, School of Energy Resources, Beijing, China
The Comprehensive Isoseismal Map of North China (377124)
Yuejun Lyu, Institute of Crustal Dynamic, China Earthquake Administration, Earthquake Engineering, Beijing, China
Normal fault connectivity through time: an example from the Chengbei fault in the Bohai Bay Basin, China (431675)
Xiaoqing Zhang1,2, Judith Hubbard3, Wu Zhiping2, Rafael V Almeida4, Yiming Liu2, Qiang Zhang2 and Lifang Liu5, (1)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (2)China University of Petroleum (East China), School of Geosciences, Qingdao, China, (3)Nanyang Technological University, Singapore, Singapore, (4)Yachay Tech University, School of Earth Sciences, Energy and Environment, Urcuqui, Ecuador, (5)CNOOC, Beijing Research Center, Beijing, China
Evidence for Earthquake Rupture through a >30° Restraining Bend of the Altyn Tagh fault (452888)
Veronica Prush, New Mexico Tech, Socorro, United States, Michael E Oskin, Univ. of California, Davis, Davis, CA, United States, Jing Liu, Tianjing University, Tianjing, China and Lei Wu, Zhejiang University, Hangzhou, China
3D geometry of the range front blind ramp and its impacts on deformation of the southern Longmen Shan, eastern Tibet (385016)
Chuang Sun, Sun Yat-Sen University, Guangzhou, China, Zhigang Li, Sun Yat-Sen University, School of Earth Sciences and Engineering, Guangzhou, China and Wenjun Zheng, Sun Yat-Sen University, Zhuhai, China
Towards Improved Probabilistic Seismic Hazard Assessment for Bangladesh (349269)
Nawar Wadud Khan, University of Dhaka, Dhaka, Bangladesh, Dewan Mohammad Enamul Haque, University of Dhaka, Department of Disaster Science and Management, Dhaka, Bangladesh, Md. Selim, University of Dhaka, Disaster Science and Management, Dhaka, Bangladesh and Dr. A.S.M. Maksud Kamal, University of Dhaka, Department of Disaster Science and Climate Resilience, Dhaka, Bangladesh
Match filter, subspace detection and stress transfer mechanisms for gas-related seismicity in the Sea of Marmara, Turkey (450860)
Jean-Baptiste Tary, Universidad de los Andes, Bogotá, Colombia, Louis B Geli, IFREMER, Marine Geosciences Research Unit, Plouzané, France, Anthony Lomax, ALomax Scientific, Mouans-Sartoux, France, Batsi Evangelia, IFREMER, Plouzané, France and Eduardo Camilo de la Hoz Lozano, Universidad de los Andes, Departamento de Geociencias, Bogota, Colombia
Slip Rate Dependence of Scaling Relationships for Fault Dimensions and Magnitude (411338)
John G Anderson, University of Nevada Reno, Reno, NV, United States, Steven G Wesnousky, University of Nevada Reno, Center for Neotectonic Studies, Reno, United States, Glenn P Biasi, USGS Geological Survey, Earthquake Science Center, Menlo Park, CA, United States and Stephen J Angster, Center for Neotectonic Studies, University of Nevada Reno, Reno, NV, United States
Multicycle Simulations of Fault Parameters of Mw6-7 Inland Faults (458309)
Anatoly Petukhin, Geo-Research Institute, Osaka, Japan, Percy Galvez, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia, Paul Somerville, AECOM, Seismology department, Los Angeles, United States and Andreas Skarlatoudis, AECOM California, Los Angeles, CA, United States
The anatomy of an ocean transform fault rupture: the 2016 M7.1 Romanche earthquake in the Mid-Atlantic from high-resolution local seismic and bathymetry data recorded with the PI-LAB experiment (450189)
J Michael Kendall1, Catherine Rychert2, Nicholas Harmon3, Stephen Paul Hicks4, Saikiran Tharimena5, Rachel E Abercrombie6, David Schlaphorst7, Petros Bogiatzis3, Ingo Grevemeyer8, Marco Ligi9, Daniele Brunelli10 and Satish Chandra Singh11, (1)University of Bristol, Bristol, BS8, United Kingdom, (2)Woods Hole Oceanographic Institution, Ocean and Earth Science, Woods Hole, MA, United States, (3)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (4)University of Southampton, Southampton, SO14, United Kingdom, (5)University Of Vienna, Wien, Austria, (6)Boston University, Boston, United States, (7)Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal, Portugal, (8)GEOMAR, Kiel, Germany, (9)CNR Institute for Marine Science, Bologna, Italy, (10)University of Modena and Reggio Emilia, Dipartimento di Scienze Chimiche e Geologiche, Modena, Italy, (11)Institut de Physique du Globe de Paris, Université Paris-Cité, Paris, France
Integrated Geophysical Investigation and 3-D Fault Characterization of the Rochester and Adna 7.5 Minute Quadrangles, Thurston and Lewis Counties, Washington (435603)
Todd Lau1, Megan L Anderson2, Michael Polenz1, Andrew Sadowski3, Rebeca Becerra1, Conner Toth1, Recep Cakir1, Wesley von Dassow1, Tabor Reedy1, Lydia Staisch4, Alexander Steely1, Timothy J Walsh1, David K. Norman1 and Brian L Sherrod5, (1)Washington State Department of Natural Resources, Washington Geological Survey, Olympia, WA, United States, (2)Washington State Department of Natural Resources, Washington Geological Survey, Port Angeles, WA, United States, (3)Washington State Department of Natural Resources, Washington Geological Survey, Ellensburg, WA, United States, (4)USGS, Menlo Park, CA, United States, (5)U.S. Geological Survey, Seattle, WA, United States
The Doty Fault Network: 3-D regional deformation applied to seismic hazard characterization in the forearc of Washington State (435261)
Megan L Anderson1, Todd Lau2, Wesley von Dassow2, Tabor Reedy2, Andrew Sadowski3, Recep Cakir2, Rebeca Becerra2, Michael Polenz2, Alexander Steely2, Timothy J Walsh2, David K. Norman2, Brian L Sherrod4, Lydia Staisch5 and Conner Toth2, (1)Washington State Department of Natural Resources, Washington Geological Survey, Port Angeles, WA, United States, (2)Washington State Department of Natural Resources, Washington Geological Survey, Olympia, WA, United States, (3)Washington State Department of Natural Resources, Washington Geological Survey, Ellensburg, WA, United States, (4)U.S. Geological Survey, Seattle, WA, United States, (5)USGS, Menlo Park, CA, United States
New insights into Seattle fault zone geometry: incorporating shallow offshore deformation using high resolution seismic reflection imagery (456930)
Ginevra Moore, University of Washington Seattle Campus, Marine Geology and Geophysics, Seattle, WA, United States, Emily C Roland, Western Washington University, Geology Department and Marine and Coastal Sciences Program, Bellingham, United States, Scott E K Bennett, U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Portland, United States, Jared Kluesner, University of California Santa Cruz, Santa Cruz, United States, Daniel S Brothers, USGS Pacific Coastal and Marine Science Center, Santa Cruz, United States and Brian L Sherrod, U.S. Geological Survey, Seattle, WA, United States
Paleoearthquake Rupture Length and Magnitude along the Central and Southern Panamint Valley Fault System, Eastern California (381704)
Israporn Sethanant, University of Melbourne, Parkville, Australia, Eric Kirby, Pennsylvania State University Main Campus, Department of Geosciences, University Park, United States and Eric McDonald, Desert Research Institute Reno, Reno, NV, United States
Shallow fault geometry from differential lidar: examples from the 2010 Mw 7.2 El Mayor-Cucapah and 2016 Mw 7.8 Kaikoura earthquakes (385875)
Lia Joyce Lajoie, Colorado School of Mines, Golden, CO, United States, Anna Diederichs, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada and Edwin Nissen, University of Victoria, Dept. of Earth and Ocean Sciences, Victoria, BC, Canada
Characterizing the 3D Geometry of the Ventura-Pitas Point Fault System in Southern California and its Potential for Large, Multi-Segment Earthquakes (441475)
Jessica Don1, Andreas Plesch2, Mattie M Newman1 and John H Shaw1, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)Harvard University, Earth and Planetary Sciences, Cambridge, United States
Analysis of Fault-Fold Structures along the Newport-Inglewood Rose Canyon Fault System at an unprecedented scale using 3D P-Cable seismic reflection data (457061)
James J Holmes, University of California San Diego, La Jolla, CA, United States, Neal W Driscoll, Scripps Institution of Oceanog, La Jolla, CA, United States and Graham M Kent, University of Nevada Reno, Nevada Seismological Laboratory, Reno, United States
3D Structural and Kinematic Model of the Delaware Basin and Surrounding Structural Blocks for Application in Understanding Recent Seismicity (448249)
Elizabeth Horne, The University of Texas at Austin, Bureau of Economic Geology, Austin, United States, Molly Zebker, The University of Texas at Austin, Aerospace Engineering & Engineering Mechanics, Austin, United States and Christopher K Zahm, University of Texas at Austin, Bureau of Economic Geology, Jackson School of Geosciences, Austin, TX, United States

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