Japan Geoscience Union Meeting 2015

Session information

International Session (Poster)

Symbol S (Solid Earth Sciences) » S-SS Seismology

[S-SS02] Frontier studies on subduction zone megathrust earthquakes and tsunamis

Mon. May 25, 2015 6:15 PM - 7:30 PM Convention Hall (2F)

Convener:*Kyuichi Kanagawa(Graduate School of Science, Chiba University), Demian Saffer(Dept. of Geosciences, The Pennsylvania State University, USA), Michael Strasser(Geological Institute, Seiss Federal Insitute of Technology ETH Zurich), Yasuhiro Yamada(Depertment of Urban Management Engineering, Kyoto University), Shuichi Kodaira(Institute for Research on Earth Evolution Japan Agency for Marine-Earth Science and Technology), Ryota Hino(International Research Institute of Disaster Science, Tohoku University), Kohtaro Ujiie(Graduate School of Life and Environmental Sciences, University of Tsukuba), Yoshihiro Ito(Disaster Prevention Research Institute, Kyoto University)

Subduction zone megathrust earthquakes and their accompanying tsunamis, such as the Tohoku-oki earthquake on March 11 in 2011, have caused severe damage in the past. Scientists have worked for decades to understand these devastating events, mostly based on seismic, tsunami and geodetic observations. In addition to these remote monitoring studies, the challenge of drilling into and directly sampling megathrust faults at seismogenic depth, analysis of drill core and downhole logs, experiments on sampled fault materials, and borehole measurements at depth has recently been taken up or being planned by the Integrated Ocean Drilling or International Ocean Discovery Program at Nankai Trough (Nankai Trough Seismogenic Zone Experiment), Japan Trench (Japan Trench Fast Drilling Project and Tracking Tsunamigenic Slips in the Japan Trench), offshore Costa Rica (Costa Rica Seismogenesis Project), and at the Hikurangi margin. In this session, we welcome presentations based on such frontier studies, in addition to those based on seismic, tsunami and geodetic observations, numerical modeling, and analyses of fault rocks exhumed from seismogenic depth.

6:15 PM - 7:30 PM

*Mayuko SHIMIZU1, Wataru TANIKAWA2, Yohei HAMADA2, Jun KAMEDA3, Asuka YAMAGUCHI4, Gaku KIMURA5 (1.Japan Atomic Energy Agency, 2.Japan Agency for Marine-Earth Science and Technology Kochi Institute for Core Sample Research, 3.Earth and Planetary System Science Department of Natural History Sciences, Graduate School of Scienc, 4.Atomosphere and Ocean Research Institute, The University of Tokyo, 5.Department of Earth and Planetary Science of the Graduate School of Science, The University of Tokyo)

6:15 PM - 7:30 PM

*Jun KAMEDA1, Robert HARRIS2, Mayuko SHIMIZU3, Kohtaro UJIIE4, Akito TSUTSUMI5, Minoru IKEHARA6, Masaoki UNO7, Asuka YAMAGUCHI8, Yohei HAMADA9, Yuka NAMIKI5, Gaku KIMURA10 (1.Hokkaido University, 2.Oregon State University, 3.Japan Atomic Energy Agency, 4.University of Tsukuba, 5.Kyoto University, 6.Kochi University, 7.Tohoku University, 8.Univeristy of Tokyo, 9.Japan Agency for Marine-Earth Science and Technology, 10.University of Tokyo)