S12B:
Earthquake Source Physics Inferred from Macroscopic Source Parameters and Seismicity Parameters III


Submit an Abstract to this Session


Session ID#: 58723

Session Description:
Understanding of earthquake source physics requires knowledge of fault properties such as the stress on the fault, the material strength, and the fault geometry. This session seeks to gather observations that can shed light on earthquake mechanics. In particular, we invite contributions that focus on macroscopic observation and inference of earthquake source parameters (e.g., source time function, stress drop, radiated energy, moment tensor, and magnitude) and earthquake statistical properties (e.g., b-value of the Gutenberg-Richter relation and ETAS parameters) observed from natural or lab-induced earthquakes. This session provides an opportunity to integrate the methodological development and observations in the lab and in the Earth with the goal of improving our knowledge of earthquake source physics and fault properties. We welcome theoretical, numerical, observational, and experimental contributions along with studies applied to seismic hazard assessment.
Primary Convener:  Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan
Conveners:  Marine Denolle, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States and Hiroki Sone, University of Wisconsin, Geological Engineering Program, Madison, United States
Primary Liaison:  Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan
Chairs:  Thomas Goebel, University of Memphis, Center for Earthquake Research and Information, Memphis, TN, United States and Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan
OSPA Liaison:  Marine Denolle, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, United States
Co-Organized with:
Seismology, and Tectonophysics

Proposed Co-Organized Session with:
  • T - Tectonophysics
Index Terms:

7215 Earthquake source observations [SEISMOLOGY]
7230 Seismicity and tectonics [SEISMOLOGY]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]
8164 Stresses: crust and lithosphere [TECTONOPHYSICS]

Abstracts Submitted to this Session:

3D ETAS based model for predicting seismicity beneath the Greater Tokyo Area (460755)
Yosihiko Ogata, Institute of Statistical Mathematics, Tokyo, Japan, Koichi Katsura Mr., Institute of Statistical Mathematics, Tachikawa, Tokyo, Japan, Hiroshi Tsuruoka, The University of Tokyo, Earthquake Research Institute, Tokyo, Japan and Naoshi Hirata, Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Seismic Dynamics in Northeastern Italy, 1995-2018 (433069)
Anastasia Nekrasova1, Vladimir G Kossobokov1 and Antonella Peresan2, (1)Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences, Moscow, Russia, (2)Istituto Nazionale di Oceanografia e Geofisica Sperimentale, Centro Ricerche Sismologiche, Udine, Italy
Assessing Variability of Intraplate Crustal Stress Orientation and Seismic Hazard in the Charlevoix Seismic Zone, Eastern Canada (375169)
John Onwuemeka, McGill University, Earth & Planetary Sciences, Montreal, QC, Canada, YaJing Liu, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada and Rebecca M Harrington, Ruhr University Bochum, Institute of Geology, Mineralogy and Geophysics, Bochum, Germany
Tides reveal stress dependence of the earthquake b-value (386059)
Yen Joe Tan, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States, Felix Waldhauser, Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, Maya Tolstoy, University of Washington, College of the Environment, Seattle, United States and William S D Wilcock, University of Washington Seattle Campus, School of Oceanography, Seattle, United States
Anchoring Megathrust Slip & Seismicity: An Empirical Study (376838)
Ta-Wei Chang, The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan and Satoshi Ide, The University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan
Why do strike-slip earthquakes produce fewer aftershocks? (421705)
Kelian Dascher-Cousineau, University of California Berkeley, Earth and Planetary Sciences, Berkeley, United States, Emily E Brodsky, University of California Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, CA, United States and Thorne Lay, University of California Santa Cruz, Santa Cruz, United States
Linear relationship between aftershock productivity and seismic coupling revealed in a high resolution data set of the Northern Chile subduction zone (359517)
Sebastian Hainzl1, Christian Sippl1 and Bernd Schurr2, (1)Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany, (2)Deutsches GeoForschungsZemtrum GFZ, Potsdam, Germany
Low productivity aftershock sequences in Oklahoma are correlated with rapid induced seismicity mitigation and abrupt reduction in wastewater disposal rates (399351)
Thomas Goebel, University of California Santa Cruz, Santa Cruz, CA, United States, Zachary Davis Rosson, Oklahoma Geological Survey, Norman, OK, United States, Emily E Brodsky, University of California Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, CA, United States and Jake I. Walter, Institute for Geophysics, Austin, United States

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