Oral

T3.［Topic Session］Collaboration and advance of geological, experimental, and seismological research on slow earthquakes

[1ch105-12] T3.［Topic Session］Collaboration and advance of geological, experimental, and seismological research on slow earthquakes

Sat. Sep 4, 2021 9:15 AM - 11:45 AM ch1 (ch1)

Chiar:Kohtaro Ujiie, Ken-ichi Hirauchi, Simon Richard Wallis

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9:15 AM - 9:45 AM

[T3-O-1] [Invited]Activity style of slow earthquakes and its geological background

*Kazushige Obara¹ (1. Earthquake Research Institute, the University of Tokyo)

9:45 AM - 10:00 AM

[T3-O-2] High Fluid-Pressure Patches beneath the plate boundary fault: A Potential Source of Slow Earthquakes in the Nankai Trough off Cape Muroto

*Takehiro Hirose¹, Yohei Hamada¹, Wataru Tanikawa¹, Nana Kamiya², Yuzuru Yamamoto³, Takeshi Tsuji⁴, Masataka Kinoshita⁵ (1. Kochi/JAMSTEC, 2. Graduate School of Engineering, Kyoto University, 3. Graduate School of Science, Kobe University, 4. Graduate School of Engineering, Kyusyu University, 5. Earthquake Research Institute, The University of Tokyo)

10:00 AM - 10:15 AM

[T3-O-3] Spatial relationships between decollement geometry, stress, physical property and shallow VLFEs in Nankai Trough off Kii Peninsula

*Yositaka Hashimoto¹, Shigeyuki Sato¹, Haruki Kuchimoto¹, Gaku Kimura², Masataka Kinoshita³, Ayumu Miyagawa⁴, Gregory Moore⁵, Masaru Nakano², Kazuya Shiraishi², Yasuhiro Yamada⁶ (1. Kochi University, 2. JASMTEC, 3. ERI, 4. AIST, 5. University of Hawaii, 6. Kyushu University)

10:15 AM - 10:30 AM

[T3-O-4] Depth profile of frictional properties of cuttings collected from the Nankai Trough and implications for shallow slow-earthquakes

*Ikuo Katayama¹, Riho Fujioka¹, Manami Kitamura², Hanaya Okuda³, Takehiro Hirose⁴ (1. Hiroshima Univ., 2. AIST, 3. Univ. of Tokyo AORI, 4. JAMSTEC Kochi Institute)

Break (10:30 AM - 10:45 AM)

10:45 AM - 11:00 AM

[T3-O-5] Frictional weakening behavior of a fault in quartz material

*Akito Tsutsumi¹, Yuko Onoe, Akira Miyake¹ (1. Graduate school of science, Kyoto University)

11:00 AM - 11:15 AM

[T3-O-6] Spontaneous slip acceleration under a boundary condition that constrains shear stress

*Miki Takahashi¹ (1. Geological Survey of Japan, AIST)

11:15 AM - 11:30 AM

[T3-O-7] Evolution of the hydraulic transmissivity of wet and dry faults induced by frictional sliding at slow to fast slip velocity with large shear displacement

*Wataru Tanikawa¹ (1. Japan Agency for Marine-Earth Science and Technology)

11:30 AM - 11:45 AM

[T3-O-8] Geological factors affecting broad spectrum of fault behavior in subduction zones

*Asuka Yamaguchi¹, Yuichi Okuma¹, Hanaya Okuda¹, Ippei Yamamoto¹, Rina Fukuchi² (1. Atmosphere and Ocean Research Institute, the University of Tokyo, 2. Naruto University of Education)

Session information