[S-CG39] Science of slow earthquakes: Toward unified understandings of whole earthquake process

Sun. Jun 6, 2021 9:00 AM - 10:30 AM Ch.21 (Zoom Room 21)

convener:Satoshi Ide(Department of Earth an Planetary Science, University of Tokyo), Hitoshi Hirose(Research Center for Urban Safety and Security, Kobe University), Kohtaro Ujiie(Faculty of Life and Environmental Sciences, University of Tsukuba), Takahiro Hatano(Department of Earth and Space Science, Osaka University), Chairperson:Satoshi Ide(Department of Earth an Planetary Science, University of Tokyo)

Accumulating observational studies on various types of slow deformation events, such as tectonic tremors, very low frequency events, and slow slip events, portrays some universal characteristics in generally complex behavior, including interaction among events and influence by various outer loading. Some of these phenomena seem to have causal relation with the occurrence of very large earthquakes. A unified understanding of these slow and fast earthquake processes requires an approach integrating geophysics, seismology, geodesy, geology, and non-equilibrium statistical physics. We welcome presentations based on, but not limited to, geophysical observation, data analysis, analytical theory, numerical simulation, field study, and laboratory experiments.

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9:00 AM - 9:15 AM

[SCG39-19] Systematics and heterogeneity of deep and shallow slow earthquakes

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

9:15 AM - 9:30 AM

[SCG39-20] Extraction of fine space-time structures in deep low-frequency tremor using the Hough transform

*Kodai Sagae¹, Hisashi Nakahara¹, Takeshi Nishimura¹, Kazutoshi Imanishi² (1.Solid Earth Physics Laboratory,Department of Geophysics,Graduate School of Science,Tohoku University, 2.National Institute of Advanced Industrial Science and Technology (AIST))

9:30 AM - 9:45 AM

[SCG39-21] Comprehensive detection of tremor migration using multiple time windows beneath Kii Peninsula

*Takuya Maeda¹, Kazushige Obara¹, Akiko Takeo¹, Takanori Matsuzawa² (1. Earthquake Research Institute, The University of Tokyo, 2.National Research Institute for Earth Science and Disaster Resilience)

9:45 AM - 10:00 AM

[SCG39-22] Focal mechanism and radiated energy from shallow tremors in the Guerrero seismic gap.

*Raymundo Omar Plata Martinez¹, Yoshihiro Ito², Kazuaki Ohta⁴, Masanao Shinohara⁵, Satoshi Ide³ (1.Graduate School of Science, Kyoto University, 2.Disaster Prevention Research Institute, Kyoto University, 3.Department of Earth and Planetary Science, University of Tokyo, 4.National Research Institute for Earth Science and Disaster Resilience, 5.Earthquake Research Institute, University of Tokyo)

10:00 AM - 10:15 AM

[SCG39-23] Seismicity around the subducted seamount in the trench-trench junction, southern off Hokkaido, by a broadband OBS array

*Ryosuke Azuma¹, Susumu Kawakubo¹, Hidenobu Takahashi¹, Ryota Hino¹, Yusaku Ohta¹, Ryota Takagi¹, Syuichi Suzuki¹, Makiko Sato¹, Tanaka Shinichi², Masanao Shinohara² (1.Recearch Center for Prediction of Earthquake and Volcanic Eruption, Graduate School of Science, Tohoku University, 2.Earthquake Research Institute, University of Tokyo)

10:15 AM - 10:30 AM

Session information