[S-CG56] Asian Earthquakes, Volcanoes and Tectonics

Sun. May 20, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Dapeng Zhao(Department of Geophysics, Tohoku University), Yukio Isozaki(Department of Earth Science and Astronomy, Multi-disciplinary Sciences - General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo), Jianshe Lei(中国地震局地??力研究所)

The geological structures and tectonics are complex in the Asian region. Many orogenic belts and active faults exist within the Asian continent, and active subductions occur in its surrounding regions. In the east, the Pacific and Philippine Sea plates are subducting beneath East Asia, causing the development of trench-arc-backarc systems. In the southwest, the Indian plate is subducting beneath the Eurasian plate, forming major topographic features, such as the Himalayan mountain chain and the Tibetan Plateau. Due to the intense interactions among the four tectonic plates, large earthquakes take place frequently, such as the 2008 Wenchuan earthquake (M 8.0), the 2011 Tohoku-oki earthquake (M 9.0), the 2015 Nepal earthquake (M 7.9), and the 2016 Kumamoto earthquake (M 7.3). In addition to many arc volcanoes caused by plate subductions, some active intraplate volcanoes exist in Asia, but their origin and relationship with the intraplate tectonics are still not very clear. In this session, we welcome original or review presentations from fields of geology, geophysics, petrology and geochemistry addressing issues of geological structures, seismotectonics, volcanism and geodynamics of the Asia region.

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[SCG56-P01] Seismic anisotropy structure of the 2011 Mw 9.0 Tohoku-oki earthquake area

*Dapeng Zhao¹, Xin Liu¹ (1.Department of Geophysics, Tohoku University)

[SCG56-P02] Spatiotemporal variation of focal mechanisms of Tatun volcano group, northern Taiwan

*Hsin-Chieh Pu¹, Cheng-Horng Lin^2,3,4,5, Li-Chin Chang³ (1.Central Weather Bureau, Taiwan, 2.Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan, 3.Taiwan Volcano Observatory at Tatun, Taipei, Taiwan, 4.Dept. of Geosciences, National Taiwan University, Taipei, Taiwan, 5.National Center for Research on Earthquake Engineering, National Applied Research Laboratories, Taipei, Taiwan)

[SCG56-P03] Active flexural folding and faulting in the NE margin of Tibetan Plateau

*Peng Chen¹, Aiming Lin¹ (1.Kyoto University)

[SCG56-P04] Particle Size Distribution of the active fault zone of Chelungpu fault and its implication for slipping and energetics of large earthquakes

*Wulan Okta Karunia¹, Li-Wei Kuo¹, Kuo-Fong Ma¹, Wen-Jie Wu¹ (1.National Central University)

[SCG56-P05] Coseismic gouge graphitization and its signatures in the active fault zone of the Longmenshan fault, China

*Li-Wei Kuo¹, Fabio Di Felice², Jyh-Rou Huang³, Elena Spagnuolo², Giulio Di Toro^2,4, Sheng-Rong Song⁵, Haibing Li⁶, Jialiang Si⁶, Stefano Aretusini⁷, John Suppe⁸ (1.National Central University, 2.Istituto Nazionale di Geofisica e Vulcanologia, 3.National Taiwan Normal University, 4.Università di Padova, 5.National Taiwan University, 6.Chinese Academy of Geological Sciences, 7.University of Manchester, 8.University of Houston, Houston)

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