S12A:
Physics of Earthquake Rupture Propagation II

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Session ID#: 17972

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:  Eiichi Fukuyama, Kyoto University, Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto, Japan and Shiqing Xu, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China
OSPA Liaison:  Eiichi Fukuyama, Kyoto University, Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto, Japan
Index Terms:

7209 Earthquake dynamics [SEISMOLOGY]
7215 Earthquake source observations [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Back-projection of large earthquakes: advances and caveats (144426)
Wenyuan Fan, Scripps Institution of Oceanography, La Jolla, United States and Peter M Shearer, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, United States
Rupture direction and rupture velocity of large earthquakes extracted from teleseismic source time functions (173166)
Agnès Chounet, Institut de Physique du Globe de Paris, Paris, France and Martin Vallée, Université de Paris, Institut de physique du globe de Paris, Paris, France
Fast Rupture Propagation for Large Strike-slip Earthquakes (129772)
Dun Wang, China University of Geosciences Wuhan, Wuhan, China, James J Mori, Kyoto University, Kyoto, Japan and Kazuki Koketsu, University of Tokyo, Earthquake Research Institute, Tokyo, Japan
Earthquake Source Properties from P-wave Spectra (Invited) (123888)
Peter M Shearer, Univ California San Diego, La Jolla, United States, Marine Denolle, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States, Daniel T Trugman, Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, CA, United States; Univ California San Diego, La Jolla, CA, United States and Rachel E Abercrombie, Boston University, Boston, MA, United States
Early aftershocks and afterslip surrounding the 2015 Mw 8.4 Illapel rupture (194195)
Lingsen Meng, University of California Los Angeles, Los Angeles, CA, United States, Hui Huang, UCLA, Los Angeles, United States, Wenbin Xu, King Abdullah University of Science and Technology, Earth Science and Engineering, Thuwal, Saudi Arabia, Roland Burgmann, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States and Juan Carlos Baez, Universidad de Chile, Facultad de Ciencias Físicas y Matemáticas, Santiago de Chile, Chile
Frictional properties and fracture energy constrained from frequency-dependent coseismic radiations of great earthquakes (123288)
Hongfeng Yang, Chinese University of Hong Kong, Hong Kong, Hong Kong and Huihui Weng, Chinese University of Hong Kong, Hong Kong, China
Rupture process of the 2016 Kumamoto earthquake in relation with the thermal structure around Aso volcano (170673)
Yuji Yagi1, Ryo Okuwaki1, Bogdan Enescu2, Amato Kasahara2, Ayumu Miyakawa3 and Makoto Otsubo3, (1)University of Tsukuba, Institute of Life and Environmental Sciences, Tsukuba, Japan, (2)University of Tsukuba, Tsukuba, Japan, (3)Geological Survey of Japan, AIST, Tsukuba, Japan
Ground motions can help to understand the style of the supershear transition of dynamic ruptures (120542)
Andrea Bizzarri, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna, Palermo, Italy and Chao Liu, University of Oxford, Oxford, United Kingdom; now at Sterling Software Inc., PROSPECT HEIGHTS, IL, United States

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