[S-SS15] Fault Rheology and Earthquake Physics

convener:Keisuke Yoshida(Tohoku University), Keishi Okazaki(Japan Agency for Marine-Earth Science and Technology), Shunya Kaneki(Disaster Prevention Research Institute, Kyoto University), Hiroyuki Noda(Kyoto University, Disaster Prevention Research Institute)

The goal of this session is to integrate theoretical, experimental, observational, and numerical perspectives from various fields such as seismology, geodesy, geology, mineralogy, and so on, to define what is known about earthquake source processes and the physical and chemical elementary processes of faulting. This session welcomes studies that address such issues as pre-, co-, and post-seismic processes, the rheology of seismogenic faults and fault rocks, laboratory experiments on elementary processes, numerical models based on frictional laws, and estimates of the stress field in the seismogenic zones. We also welcome studies on fault-zone drilling projects and in situ stress measurements.

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[SSS15-07] Evolution of fault zones and its rheology

*Kiyokazu Oohashi¹, Toru Takeshita², Ken-ichi Hirauchi³ (1.Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2.Graduate School of Science, Hokkaido University, 3.Department of Geoscience, Faculty of Science, Shizuoka University)

[SSS15-08] A fault constitutive law in a brittle-plastic transitional regime accounting for geometry of deformation in a shear zone

*Hiroyuki Noda¹, Keishi Okazaki² (1.Kyoto University, Disaster Prevention Research Institute, 2.JAMSTEC)

[SSS15-09] What can we learn from meter-scale rock friction experiments?

★Invited Papers

*Eiichi Fukuyama^1,2, Futoshi Yamashita², Shiqing Xu³, Kazuo Mizoguchi^4,2, Shigeru Takizawa², Hironori Kawakata^5,2 (1.Kyoto University, 2. National Research Institute for Earth Science and Disaster Resilience, 3.Southern University of Science and Technology, 4.Central Research Institute of Electric Power Industry, 5.Ritsumeikan University)

[SSS15-10] Rate and state dependent friction of single-crystal muscovite from room to elevated temperature

*Hiroshi Sakuma¹, Diane E Moore², David A Lockner² (1.National Institute for Materials Science, 2.U.S. Geological Survey)

[SSS15-11] Effect of humidity on the frictional properties of synthetic quartz gouge at intermediate- to high-velocity slip

*Yuko Onoe¹, Akito Tsutsumi¹ (1.Graduate School of Science, Kyoto University)

[SSS15-12] Weakening of quartz rocks at subseismic slip rates due to frictional heating

*Kyuichi Kanagawa¹, Asuka Sugita², Miki Takahashi³, Michiyo Sawai¹ (1.School of Science, Chiba University, 2.Faculty of Science, Chiba University, 3.Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan)