T41C:
The Influence of Fault Zone Structure on Plate Boundary Tectonics and Earthquakes Posters

Submit an Abstract to this Session



Session ID#: 26243

Session Description:
This session seeks to highlight studies of fault zone properties in relation to transient slip, triggering, and rupture propagation direction across plate boundaries. Probabilistic-hazard source models may overestimate expected earthquakes in California. Paleoseismic and historical data in southern California indicate a 160 year long hiatus in great earthquakes. Factors affecting hazard model performance can include insufficient characterization of transient slip, slip triggering, and fault zone damage properties. These factors may arise in part because the crust is not purely elastic, and compliant material can serve to relieve stress aseismically. Differences in seismic velocities within the crust and fault geometry can control rupture propagation direction and whether earthquakes jump from one segment to another, cascading into larger events. This session encourages results based on geodetic, geologic, and seismic data that illuminate spatial and temporal patterns connecting fault zones with plate boundary deformation.
Primary Convener:  Andrea Donnellan, Jet Propulsion Laboratory, California Institute of Technology, Instrument Systems Section, Pasadena, United States
Conveners:  Yehuda Ben-Zion, University of Southern California, Los Angeles, CA, United States, Ramon Arrowsmith, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States and Stephen DeLong, U.S. Geological Survey, Moffett Field, United States
Chairs:  Ramon Arrowsmith, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States and Stephen DeLong, U.S. Geological Survey, Moffett Field, United States
OSPA Liaison:  Ramon Arrowsmith, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States
Co-Organized with:
Tectonophysics, Geodesy, Nonlinear Geophysics, Natural Hazards, and Seismology

Cross-Listed:
  • G - Geodesy
  • NG - Nonlinear Geophysics
  • NH - Natural Hazards
  • S - Seismology
Index Terms:

1207 Transient deformation [GEODESY AND GRAVITY]
1209 Tectonic deformation [GEODESY AND GRAVITY]
7223 Earthquake interaction, forecasting, and prediction [SEISMOLOGY]
8158 Plate motions: present and recent [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Seismic imaging of the southern California plate-boundary around the South-Central Transverse Ranges using double-difference tomography (255832)
Pieter-Ewald Share1, Yehuda Ben-Zion2, Clifford H Thurber3, Haijiang Zhang4 and Hao Guo4, (1)University of Southern California, Los Angeles, CA, United States, (2)USC, Department of Earth Sciences, Los Angeles, CA, United States, (3)University of Wisconsin Madison, Department of Geoscience, Madison, WI, United States, (4)USTC University of Science and Technology of China, Hefei, China
Shallow Crustal Structure in the Northern Salton Trough, California: Insights from a Detailed 3-D Velocity Model (257269)
Rasheed Ajala1, Patricia Persaud2, Joann M Stock3, Gary S Fuis4, John A Hole5, Mark Goldman6 and Daniel S Scheirer4, (1)Lamont -Doherty Earth Observatory, Seismology, Geology & Tectonophysics, Palisades, United States, (2)Louisiana State University, Department of Geology and Geophysics, Baton Rouge, United States, (3)California Institute of Technology, Pasadena, CA, United States, (4)U.S. Geological Survey, Menlo Park, CA, United States, (5)Virginia Polytechnic Institute and State University, Center for Advanced Subsurface Earth Resource Models, Department of Geosciences, Blacksburg, United States, (6)U.S. Geological Survey, Earthquake Science Center, Mountain View, United States
Fault zone structure and kinematics from lidar, radar, and imagery: revealing new details along the creeping San Andreas Fault (257851)
Stephen DeLong, U.S. Geological Survey, Moffett Field, United States, Andrea Donnellan, 1Jet Propulsion Laboratory, California Institute of Technology, Science Division, Pasadena, CA, United States and Alexandra Pickering, U.S. Geological Survey, Earthquake Science Center, Moffett Field, CA, United States
The Influence of Fault Distribution on Regional Seismic Activity: Results from a FEA Model (230609)
Weiping Lian1, Fangtou Tang2, Haijian Ma1, Xiaoxuan Li3 and Lulu Jia1, (1)National Earthquake Infrastructure Service, Beijing, China, (2)Institute of Geophysics, China Earthquake Administration, Beijing, China, (3)George Mason University, Fairfax, United States
Microearthquake monitoring of the Shanchiao fault in northern Taiwan (269495)
Che-Min Lin1, Kuo-Liang Wen2, Chih-Wei Chang3 and Hung-Hao Hsieh3, (1)NCREE National Center for Research on Earthquake Engineering of Taiwan, Taipei, Taiwan, (2)National Central University, Institute of Geophysice, Taoyuan, Taiwan, (3)National Center for Research on Earthquake Engineering, NARLabs, Taipei, Taiwan
Dynamic rupture models of subduction zone earthquakes with off-fault plasticity (252299)
Stephanie Wollherr1, Iris van Zelst2, Alice-Agnes Gabriel3, Ylona van Dinther4, Elizabeth H Madden5 and Thomas Ulrich5, (1)Ludwig Maximilians University of Munich, Department of Earth and Environmental Sciences, Munich, Germany, (2)ETH Swiss Federal Institute of Technology Zurich, Department of Earth Sciences, Zurich, Switzerland, (3)Ludwig Maximilian University of Munich, Munich, Germany, (4)Utrecht University, Department of Earth Sciences, Utrecht, Netherlands, (5)Ludwig Maximilian University of Munich, Department of Earth and Environmental Sciences, Munich, Germany
The Sorong Fault Zone, Indonesia: Mapping a Fault Zone Offshore (228416)
Samuel Melia and Robert Hall, SE Asia Research Group, Department of Earth Science, Royal Holloway University of London, Egham, United Kingdom
Continuous Earthquake Observation using pop-up Ocean Bottom Seismographs (OBSs) in Suruga Bay at the Pacific Coast of Shizuoka, Japan. (231143)
Hisatoshi Baba1, Satomi Ichinose2, Kenji HIrata3, Akira Yamazaki4, Hiroaki Tsushima5, Kenji Nakata5, Takahito Nishiimiya6 and Toshiyasu Nagao7, (1)Department of Marine and Earth Science, Tokai University, Shizuoka, Japan, (2)Graduate School of Oceanography, Tokai University, Shizuoka, Japan, (3)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (4)Kakioka Magnetic Observatory, Japan Meteorological Agency, Kakioka, Japan, (5)Meteorological Research Institute (MRI), Japan Meteorological Agency, Tsukuba, Japan, (6)Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan, (7)Institute of Oceanic Research and Development, Tokai University, Shizuoka, Japan

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