[S-SS30_28AM1] New perspective of great earthquakes along subduction zones

Mon. Apr 28, 2014 9:30 AM - 10:45 AM Main Hall (1F)

Convener:*Kyuichi Kanagawa(Graduate School of Science, Chiba University), Takashi Furumura(Center for Integrated Disaster Information Research (CIDIR) Interfaculty Initiative in Information Studies, The University of Tokyo), Shuichi Kodaira(Institute for Research on Earth Evolution Japan Agency for Marine-Earth Science and Technology), Masanobu Shishikura(Active Fault and Earthquake Research Center, GSJ/AIST), Chair:Takashi Furumura(Center for Integrated Disaster Information Research (CIDIR) Interfaculty Initiative in Information Studies, The University of Tokyo)

We explore a new perspective of great earthquakes along subduction zones by integrating results of historical earthquake and tsunami surveys, seismic and geodetic observations and experiments, laboratory experiments, material analyses, and numerical modeling on pre- and co-seismic processes and slips, seismic links, and the recurrence. We welcome presentations not only on great earthquakes along Japan Trench, Nankai Trough, and other subduction zones in the world, but also on their precursory or inducing large inland earthquakes.

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9:30 AM - 9:45 AM

[SSS30-01] Long-term seismic quiescence and activation anomalies preceding to the 2004 Sumatra and the 2005 Nias earthquakes

*Kei KATSUMATA¹ (1.Inst. Seismology and Volcanology, Hokkaido University)

9:45 AM - 10:00 AM

[SSS30-02] Spatial heterogeneity of the frictional property on the Pacific plate off south-east of Hokkaido, Japan

Yu SAITO¹, *Takuji YAMADA¹, Yuichiro TANIOKA¹ (1.ISV, Hokkaido Univ.)

10:00 AM - 10:15 AM

[SSS30-03] Seismically inferred rupture process of the 2011 Tohoku-Oki earthquake by using 3D and 2.5D Green's tensor waveforms

*Taro OKAMOTO¹, Hiroshi TAKENAKA², Tatsuhiko HARA³, Takeshi NAKAMURA⁴, Takayuki AOKI⁵ (1.Dep. Earth Planet. Sci., Tokyo Institute of Technology, 2.Dep. Earth System Sci. Okayama University, 3.IISEE, Building Research Institute, 4.Japan Agency for Marine-Earth Science and Technology, 5.GSIC, Tokyo Institute of Technology)

10:15 AM - 10:30 AM

[SSS30-04] Seismic velocity and attenuation tomography of the source zone of the 2011 Tohoku-oki earthquake (Mw 9.0)

*Dapeng ZHAO¹, Xin LIU¹, Zhouchuan HUANG¹ (1.Tohoku University, Department of Geophysics)

10:30 AM - 10:45 AM

[SSS30-05] A Study on Seismicity before and after the Tohoku Earthquake around its Southern Boundary Using Dense OBS Array Data

*Yukihiro NAKATANI¹, Kimihiro MOCHIZUKI¹, Masanao SHINOHARA¹, Tomoaki YAMADA¹, Ryota HINO², Yoshihiro ITO³, Yoshio MURAI⁴, Toshinori SATO⁵ (1.Earthquake Research Institute, The University of Tokyo, 2.International Research Institute of Disaster Science, Tohoku University, 3.Disaster Prevention Research Institute, Kyoto University, 4.Graduate School of Science, Hokkaido University, 5.Graduate School of Science, Chiba University)