Mon. May 23, 2016 10:45 AM - 12:15 PM 201A (2F)

Convener:*Eiichi Takahashi(Earth and Planetary Sciences, Graduate School of Science and Technology, Tokyo Institute of Technology), Mitsuhiro Nakagawa(Department of Natural History of Science, Faculty of Science, Hokkaido University), Kenji Satake(Earthquake Research Institute, University of Tokyo), Mie Ichihara(Earthquake Research Institute, University of Tokyo), Nobuo Geshi(Geological Survey of Japan, The National Institute of Advanced Industrial Science and Technology), Chair:Nobuo Geshi(産業技術総合研究所　活断層・火山研究部門)

Due to the March 11 2011 M9 earthquake, stress field in Japanese arc has been changed dramatically. It is proposed that long-term volcanic activity will increase due to the stress field change. In this session, we aim to clarify activation process of volcanic activity triggered by the stress field change. The 17th century volcanic activity in 3 volcanoes in south west Hokkaido is studied as a possible example of volcanic activity triggered by mega-earthquake. Monitoring of ongoing processes in volcanoes in Tohoku area and their interpretation is the key to predict future volcanic activity. We expect interdisciplinary research presentations from a wide range such as, volcanology, seismology, geodesy, geology, petrology and subduction zone dynamics.