S11B:
Earthquake Source Physics Inferred from Macroscopic Source Parameters and Seismicity Parameters I


Submit an Abstract to this Session


Session ID#: 58711

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:  Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan and Marine Denolle, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, United States
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:

Earthquake Stress Drop and Peak Ground Motion: A Machine Learning Perspective (Invited) (350490)
Daniel T Trugman, Los Alamos National Laboratory, Earth and Environmental Sciences: Geophysics (EES-17), Los Alamos, NM, United States and Peter M Shearer, Univ California San Diego, La Jolla, United States
Towards Improved Stress Drop Measurement: A Detailed Comparison of Contrasting Approaches (371948)
Rachel E Abercrombie, Boston University, Boston, MA, United States and Peter M Shearer, Univ California San Diego, La Jolla, United States
Applying improved spectral analysis to an induced earthquake sequence in Oklahoma and implications on earthquake triggering (467155)
Xiaowei Chen, University of Oklahoma Norman Campus, School of Geosciences, Norman, OK, United States and Rachel E Abercrombie, Boston University, Boston, MA, United States
Spectra of Large Earthquakes at short epicentral distances (437227)
Sergio Ruiz1, Raul I Madariaga2, Efrain Rivera3, Felipe Leyton1 and Juan Carlos CARLOS Baez Sr4, (1)University of Chile, Santiago, Chile, (2)Ecole Normale Supérieure Paris, Paris, France, (3)Universidad de Chile, Departamento de Geofísica, Facultad de Ciencias Físicas y Matemáticas, Santiago, Chile, (4)University of Chile, Geophysics, Santiago, Chile
Stress-Drop Estimates for Seismicity on Hawai’i Island from P-wave Spectral Analysis (419126)
Beineng Zhang, Scripps Institution of Oceanography, La Jolla, CA, United States, Peter M Shearer, Scripps Institution of Oceanography, La Jolla, United States and Robin S Matoza, University of California, Santa Barbara, Santa Barbara, United States
Estimating Regional Wave Source Time Functions Using a Multi-Channel Deconvolution Method (364609)
Jiakang Xie, Air Force Research Laboratory, Albuquerque, NM, United States and Andrea C Conley nee Gallegos, Air Force Research Laboratory Albuquerque, Albuquerque, NM, United States
Earthquake Sub-event Scaling : New Perspective for Rupture Determinism (397367)
Philippe Jacques Danré1, Jiuxun Yin2, Bradley Paul Lipovsky2 and Marine Denolle3, (1)Ecole Normale Supérieure Paris, Paris, France, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (3)Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States

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