Japan Geoscience Union Meeting 2022

Session information

[J] Oral

S (Solid Earth Sciences ) » S-CG Complex & General

[S-CG57] New perspectives of subduction zone earthquake dynamics through experiments across-scales

Wed. May 25, 2022 3:30 PM - 5:00 PM 102 (International Conference Hall, Makuhari Messe)

convener:Masataka Kinoshita(Earthquake Research Institute, University of Tokyo), convener:Eiichiro Araki(Japan Agency for Marine-Earth Science and Technology), Yoshio Kono(Geodynamics Research Center, Ehime University), convener:Yoshitaka Hashimoto(Kochi University), Chairperson:Masataka Kinoshita(Earthquake Research Institute, University of Tokyo), Nana Kamiya(Graduate School of Engineering, Kyoto University), Mukae Tomoya(Yamaguchi Univercity)

Knowledge on subduction zone earthquake phenomena has considerably increased in the last decade. On the other hand, there are limits to seismological approach alone to comprehensively elucidate the earthquake mechanism in which phenomena that differ drastically in space and time, from earthquake nucleation/growth processes to its driving force. Steps to enable scientific earthquake forecasting should include; monitoring regional seismic/tectonic activity using networked observatories, sampling of and insitu measurement in seismogenic faults and plate materials through ultra-deep drilling, and reproduction/insitu-observation of fracture nucleation processes by high-pressure quantum-beam experiments. Through a close collaboration, we challenge a dynamic imaging of earthquake processes. This year, we focus on the state & property of seamount subduction and its possible consequence on seismicity. We welcome, but not limited to, presentations from fields of ocean and land networks observation, seismogenic zone drilling, rock mechanical & quantum beam experiments, fracture process theory, etc.

3:30 PM - 3:45 PM

*Teruyuki Kato1, Yukihiro Terada2, Keiichi Tadokoro3, Akira Futamura4 (1.Institute of Regional Development, Taisho University, 2.National Institute of Technology, Kochi College, 3.Graduate School of Environmental Studies, Nagoya University, 4.National Institute of Technology, Yuge College)

4:00 PM - 4:15 PM

*Nana Kamiya1, Masataka Kinoshita2, Weiren Lin3, Takehiro Hirose4, Yuzuru Yamamoto5, Stephen Alan Bowden6, Man-Yin Tsang5, Satoshi Tonai7, Expedition 370 Scientists Group8 (1.Graduate School of Engineering, Kyoto University, 2.The University of Tokyo, 3.Kyoto University, 4.JAMSTEC, 5.Kobe University, 6.University of Aberdeen, 7.Kochi University, 8.IODP)

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