Japan Geoscience Union Meeting 2016

Session information


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

[S-CG62] Activation of long-term volcanic activity by mega-earthquake

Mon. May 23, 2016 1:45 PM - 3:15 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:Morihisa Hamada(国立研究開発法人海洋研究開発機構地球内部物質循環研究分野)

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.