[S-CG48] Science of slow earthquakes: Toward unified understandings of whole earthquake process

Thu. May 30, 2019 9:00 AM - 10:30 AM Convention Hall A (2F)

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(Graduate School of Life and Environmental Sciences, University of Tsukuba), Takahiro Hatano(Earthquake Research Institute, University of Tokyo), Chairperson:Kimihiro Mochizuki(Earthquake Research Institute, University of Tokyo), Ryuta Arai

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 loadings. 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

[SCG48-17] Three-dimensional seismic structure of the shallow plate boundary in the northern Hikurangi margin from NZ3D OBS data

*Ryuta Arai¹, Shuichi Kodaira¹, Richard Kellett², Valerie Stucker², Dan Bassett², Stuart Henrys², Koichiro Obana¹, Nathan Bangs³, Dan Barker², Rebecca Bell⁴, Kimihiro Mochizuki⁵, Gou Fujie¹, Seiichi Miura¹, Bill Fry², team NZ3D (1.Japan Agency for Marine-Earth Science and Technology, 2.GNS Science, 3.University of Texas Institute for Geophysics, 4.Imperial College London, 5.Earthquake Research Institute, University of Tokyo)

9:15 AM - 9:45 AM

[SCG48-18] Using earthquake focal mechanisms to investigate slow slip driving forces in the northern Hikurangi

★Invited Papers

*Emily Warren-Smith¹, Bill Fry¹, Laura Wallace¹ (1.GNS Science)

9:45 AM - 10:00 AM

[SCG48-19] Seismological structural changes around source regions of slow earthquakes in Nankai subduction zone inferred from broadband receiver functions

*Yasunori Sawaki¹, Yoshihiro Ito², Kazuaki Ohta², Takuo Shibutani², Tomotaka Iwata² (1.Graduate School of Science, Kyoto University , 2.Disaster Prevention Research Institute, Kyoto University)

10:00 AM - 10:15 AM

[SCG48-20] Slip tendency maps for compressional and extensional stress states on a shallow decollement in Nankai Trough

*Yoshitaka Hashimoto¹, Shigeyuki Sato¹, Gregory F Moore², Masataka Kinoshita³, Gaku Kimura⁴, Ayumu Miyakawa⁵, Kazuya Shiraishi⁶, Yasuhiro Yamada⁶ (1.Kochi University, 2.University of Hawaii, 3.University of Tokyo, 4.Tokyo University of Marine Science and Technology, 5.AIST, 6.JAMSTEC)

10:15 AM - 10:30 AM

[SCG48-21] Permeability and its anisotropy on creeping Chihshang Fault, Taiwan

*Tyas Dwi Aprilniadi¹, Wen-Jie Wu¹, Li-Wei Kuo¹, Jian-Cheng Lee², Jia-Jyun Dong³ (1.Department of Earth Sciences, National Central University, 2.Institute of Earth Sciences, Academia Sinica, 3.Graduate Institute of Applied Geology, National Central University)

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