S23B:
Earthquake Source Physics and Its Interplay with Strong Ground Motion Posters

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Session ID#: 13975

Session Description:
Laboratory experiments and theoretical studies reveal physical processes and mechanisms that result in significant dynamic coseismic weakening. Complex fault geometry and surface roughness have important effects on dynamic rupture propagation and seismic radiation. Off-fault damage contributes to the energy budget of an earthquake rupture, and alters amplitude and frequency content of ground motion. How well do these processes and factors of earthquake sources manifest themselves in strong ground motion recordings? Ground motion simulations of scenario earthquakes have become an increasingly important vehicle for seismic hazard analysis. Incorporating as much source physics as possible into these simulations allows predictions of ground motion to be as realistic as possible. Dynamic source characterization can help achieve this goal. In this session, we welcome contributions that advance our understanding of earthquake source physics, or improve strong ground motion predictions by incorporating more realistic earthquake source physics.
Primary Convener:  Benchun Duan, Texas A&M University College Station, Department of Geology & Geophysics, College Station, TX, United States
Conveners:  Ruth Harris, USGS, Earthquake Science Center, Moffett Field, United States and Steven M Day, San Diego State University, Department of Earth & Environmental Sciences, San Diego, CA, United States
Chairs:  Ruth Harris, USGS, Earthquake Science Center, Moffett Field, United States, Steven M Day, San Diego State University, Department of Earth & Environmental Sciences, San Diego, CA, United States and Benchun Duan, Texas A&M University College Station, Department of Geology & Geophysics, College Station, TX, United States
OSPA Liaison:  Benchun Duan, Texas A&M University College Station, Department of Geology & Geophysics, College Station, TX, United States
Index Terms:

7209 Earthquake dynamics [SEISMOLOGY]
7212 Earthquake ground motions and engineering seismology [SEISMOLOGY]
7290 Computational seismology [SEISMOLOGY]

Abstracts Submitted to this Session:

Earthquake friction (125857)
Francesco Mulargia, University of Bologna, Bologna, Italy and Andrea Bizzarri, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di, Palermo, Italy
Seismic Radiation in High-Velocity Shear Experiments (158067)
Ximeng Zu, University of Oklahoma Norman Campus, Norman, OK, United States, Brett M Carpenter, University of Oklahoma Norman Campus, School of Geosciences, Norman, United States and Ze'ev Reches, University of Oklahoma Norman Campus, School of Geosciences, Norman, OK, United States
A new way to estimate shear tractions on active faults in southern California (126452)
Peter Bird, University of California Los Angeles, Los Angeles, CA, United States
Dynamic Rupture Simulations to Investigate the Behavior of Mega-Thrust Faults Constrained by Experimental Results (155990)
Kenichi Tsuda1, Jun'ichi Miyakoshi1 and Jean Paul Ampuero2, (1)Shimizu Corporation, Tokyo, Japan, (2)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States
Dynamic rupture scenarios from Sumatra to Iceland - High-resolution earthquake source physics on natural fault systems (Invited) (183645)
Alice-Agnes Gabriel1,2, Elizabeth H Madden1, Thomas Ulrich3 and Stephanie Wollherr4, (1)Ludwig Maximilian University of Munich, Department of Earth and Environmental Sciences, Munich, Germany, (2)Ludwig Maximilian University of Munich, Munich, Germany, (3)Ludwig Maximilians Universitat Munchen, Dept. of Earth and Environmental Sciences, Munich, Germany, (4)Ludwig Maximilians University of Munich, Munich, Germany
Aiming for Validation – The SCEC/USGS Dynamic Earthquake Rupture Code Comparison Exercise (195617)
Ruth Harris, U.S. Geological Survey, Earthquake Science Center, Menlo Park, CA, United States
Validating Pseudo-dynamic Source Models against Observed Ground Motion Data at the SCEC Broadband Platform, Ver 16.5 (169475)
Seok Goo Song, Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea
Investigating the characteristics of near-source ground motions using pseudo dynamic source models derived with 1-point and 2-point statistics of earthquake source parameters (173631)
Donghee Park, Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd, Site & Structural Engineering Group, Daejeon, Korea, Republic of (South), Seok Goo Song, Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea and Junkee Rhie, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea
Dynamic Rupture Simulations with Plastic Yielding in Fault Damage Zone (Invited) (153080)
Daniel Roten, San Diego State University, Dept. Geol Sciences, San Diego, CA, United States, Kim Bak Olsen, San Diego State University, San Diego, CA, United States, Steven M Day, San Diego State University, Department of Earth & Environmental Sciences, San Diego, CA, United States and Yifeng Cui, San Diego Supercomputer Center, La Jolla, CA, United States
Quantifying factors that cause severe damage in Tainan city during the 2016 M6.4 Meinong, Taiwan earthquake by spontaneous rupture modeling (196811)
Leiyin Jiao, Texas A&M University College Station, College Station, TX, United States, Benchun Duan, Texas A&M University College Station, Department of Geology & Geophysics, College Station, TX, United States and Dunyu Liu, University of Texas at Austin, Institute for Geophysics, Austin, United States
Microearthquake detection at 2012 M4.9 Qiaojia earthquake source area , the north of the Xiaojiang Fault in Yunnan, China (144692)
Yuexin Li1, Hongfeng Yang2, Shiyong Zhou3 and Chuan Yan1, (1)Peking University, Beijing, China, (2)Chinese University of Hong Kong, Hong Kong, Hong Kong, (3)ITAG Institute of Theoretical and Applied Geophysics, Peking University, Beijing, China

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