S14B:
Physics of Earthquake Rupture Propagation IV

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Session ID#: 17982

Session Description:
Physics of earthquake rupture propagation is a classic problem, on which many studies have been conducted. Due to the upgrade of scientific instruments and methods, now we are able to study earthquake rupture in greater detail in laboratory experiments, in addition to the field observations and numerical simulations. Highlights of recent discoveries include the diverse weakening mechanisms during fault slip, the scale dependence of fault friction and fracture energy, the modulation of fault zone property and surface topography on rupture behavior, the generation of supershear ruptures under heterogeneous conditions, and the non-persistent behaviors of the same fault patch during different earthquakes. In this session, we welcome studies, from friction experiments, seismic/geodetic observations, and numerical modeling, to reflect recent progress in studying the source properties, the detailed rupture process, the involved mechanisms, and the energy budget of earthquakes.
Primary Convener:  Shiqing Xu, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China
Conveners:  Eiichi Fukuyama, Kyoto University, Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto, Japan, Amir Sagy, Geological Survey of Israel, Jerusalem, Israel and Mai Linh Doan, ISTerre Institute of Earth Sciences, Université Grenoble Alpes, Grenoble, France
Chairs:  Mai Linh Doan, ISTerre Institute of Earth Sciences, Université Grenoble Alpes, Grenoble, France, Eiichi Fukuyama, Kyoto University, Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto, Japan, Amir Sagy, Geological Survey of Israel, Jerusalem, Israel and Shiqing Xu, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China
OSPA Liaison:  Mai Linh Doan, ISTerre Institute of Earth Sciences, Université Grenoble Alpes, Grenoble, France
Index Terms:

4314 Mathematical and computer modeling [NATURAL HAZARDS]
7209 Earthquake dynamics [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Insights into earthquake rupture and recovery from paleoseismic faults (Invited) (119301)
Christie D Rowe, McGill University, Dept of Earth and Planetary Sciences, Montreal, QC, Canada, W. Ashley Griffith, University of Texas at Arlington, Arlington, TX, United States, Catherine Ross, McGill University, Earth & Planetary Sciences, Montreal, QC, Canada, Benjamin Lee Melosh, U.S. Geological Survey, Moffett Field, United States and Erik Young, McGill University, Montreal, QC, Canada
The Range of Temperature Rise During Earthquakes (174670)
Heather M Savage1, Pratigya J Polissar2, Hannah S Rabinowitz1 and Genevieve L Coffey3, (1)Columbia University of New York, Palisades, NY, United States, (2)Lamont-Doherty Earth Observatory, Palisades, United States, (3)University of Otago, Dunedin, New Zealand
Natural polish in granitic rocks (193142)
Shalev Siman-Tov, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, Emily E Brodsky, University of California Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, CA, United States, Greg M Stock, Yosemite National Park, El Portal, CA, United States and Joseph Clancy White, University of New Brunswick, Fredericton, NB, Canada
Theoretical Constraints on Properties of Dynamic Ruptures Implied by Pulverized Fault Zone Rocks (Invited) (120976)
Yehuda Ben-Zion, University of Southern California, Department of Earth Sciences and Statewide California Earthquake Center, Los Angeles, CA, United States and Shiqing Xu, National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan
Effect of Brittle off-fault Damage on Earthquake Rupture Dynamics (133798)
Harsha S. Bhat, Ecole Normale Supérieure Paris, Laboratoire de Géologie, Paris, France, Marion Y Thomas, University of Oxford, Oxford, United Kingdom and Yann Klinger, Institut de Physique du Globe de Paris, Paris, France
The tell-tale sound of low dynamic friction during slip pulses (190611)
Thomas H Heaton, California Institute of Technology, Seismological Laboratory, Division of Geological and Planetary Sciences, Pasadena, CA, United States
Behavior of pulse-like rupture with velocity-time-dependent friction from a granular layer model (168417)
Shiro Hirano1, Teruo Yamashita2 and Takahiro Hatano2, (1)Ritsumeikan University, Kusatsu, Japan, (2)University of Tokyo, Bunkyo-ku, Japan
Where did the time go? Friction evolves with slip following large velocity steps, normal stress steps, and (?) during long holds (158447)
Pathikrit Bhattacharya, Princeton University, Princeton, United States, Allan M Rubin, Princeton University, Princeton, NJ, United States, Terry E Tullis, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States, Keishi Okazaki, Brown University, Providence, United States and Nicholas M Beeler, USGS Cascades Volcano Observatory, Vancouver, United States

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