JpGU-AGU Joint Meeting 2020

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[E] Oral

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

[S-CG58] Science of slow earthquakes: Toward unified understandings of whole earthquake process

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(Department of Earth and Space Science, Osaka University)

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.

[SCG58-17] Seismic evidence for fault-bound anisotropy and its implications on fault structure in the northern Hikurangi subduction zone

*Ryuta Arai1, Shuichi Kodaira1, Stuart Henrys2, Nathan Bangs3, Koichiro Obana1, Gou Fujie1, Seiichi Miura1, Dan Barker2, Dan Bassett2, Rebecca Bell4, Kimihiro Mochizuki5, Richard Kellett2, Valerie Stucker2, Fry Bill2, NZ3D Team (1.Japan Agency 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)