S33E:
Earthquake Source Properties Inferred from Macroscopic Earthquake Source Parameters and Seismicity Parameters II

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Session ID#: 32812

Session Description:
Macroscopic earthquake source parameters (e.g. stress drop, radiated energy, moment tensor, and magnitude) inferred from seismic data reflect the physics of the fault rupture process and fault properties such as stress on the fault and fault strength. Therefore source parameters are useful to understand rupture processes and fault properties and hence, to assess earthquake hazard. Moreover, statistical analyses of seismicity (e.g. b-value of the Gutenberg-Richter relation) are showing their potential as an indicator of fault properties. To further promote this research, we need both accurate estimates of the source and the seismicity parameters and appropriate interpretations. This session aims to gather and integrate earthquake source parameter and seismicity studies to improve our knowledge of, for example, earthquake rupture dynamics, fault properties, tectonics, and seismic hazard assessment. We welcome theoretical, numerical, observational, and experimental contributions to improve the estimation and interpretation of source parameters and seismicity parameters.
Primary Convener:  Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan
Conveners:  Xiaowei Chen, University of Oklahoma Norman Campus, School of Geosciences, Norman, OK, United States and Hiroki Sone, University of Wisconsin-Madison, Geological Engineering Program, Madison, WI, United States
Chairs:  Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan and Xiaowei Chen, The University of Oklahoma, School of Geology and Geophysics, Norman, OK, United States
OSPA Liaison:  Hiroki Sone, University of Wisconsin, Geological Engineering Program, Madison, United States

Cross-Listed:
  • T - Tectonophysics
Index Terms:

3255 Spectral analysis [MATHEMATICAL GEOPHYSICS]
3270 Time series analysis [MATHEMATICAL GEOPHYSICS]
7215 Earthquake source observations [SEISMOLOGY]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Methods and recent results on earthquake source parameters scaling, diversity and physical interpretations (Invited) (208906)
German A Prieto, Universidad Nacional de Colombia (UNAL), Departamento de Geociencias, Bogotá, Colombia, Manuel Alberto Florez, Massachusetts Institute of Technology, Cambridge, MA, United States and Piero Poli, CNRS, Université Grenoble Alpes, Institut des Sciences de la Terre (ISTerre), St Martin D'Hères, France
Benefits of Applying Hierarchical Models to the Empirical Green’s Function Approach (276223)
Chris Van Houtte, Harvard University, Cambridge, MA, United States and Marine Denolle, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States
Earthquake Source Spectral Study beyond the Omega-Square Model (241909)
Takahiko Uchide and Kazutoshi Imanishi, National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan
Stress drop variation of M > 4 earthquakes on the Blanco oceanic transform fault using a phase coherence method (279325)
Joshua Richard Williams, University of Leeds, Leeds, LS2, United Kingdom, Jessica Hawthorne, University of Leeds, Leeds, United Kingdom, Sebastian Rost, The University of Leeds, Leeds, United Kingdom and Tim J Wright, University of Leeds, COMET, School of Earth and Environment, Leeds, United Kingdom
Robust stress drop estimates for induced earthquakes in Oklahoma (260914)
Nana Yoshimitsu1, William L Ellsworth2, Gregory C Beroza2 and Martin Schoenball1, (1)Stanford University, Stanford, CA, United States, (2)Stanford University, Department of Geophysics, Stanford, CA, United States
Stress Drop and Directivity Patterns Observed in Small-Magnitude (<M5) Seismic Clusters Near Reno, Nevada (295903)
Rachel Lauren Hatch Ibarra, University of Nevada Reno, Reno, NV, United States, Christine J Ruhl, University of California Berkeley, Berkeley, CA, United States, Rachel E Abercrombie, Boston University, Boston, MA, United States and Ken Smith, University of Nevada Reno, Nevada Seismological Laboratory, Reno, NV, United States

See more of: Seismology