Session outline

Multidisciplinary and Interdisciplinary(M) Session Sub Category Intersection(IS) Session ID M-IS33 Title How to evaluate the potential for megaquake and tsunami from onsite observations before the events? Short title Megaquake & tsunami potential evaluation Convener Name Yoshihiro Ito Affiliation Disaster Prevention Research Institute, Kyoto University Co-convener 1. Name Kiichiro Kawamura Affiliation Graduate School of Sciences and Engineers, Yamaguchi University Co-convener 2. Name Takeshi Tsuji Affiliation International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University International Symposium No request Language Japanese Scope Many studies have shown that geological, geophysical, geochemical and biological disturbances had been caused by the 2011 Tohoku-Oki earthquake (M9) around its focal region. These onsite evidences demonstrated the importance of interdisciplinary observations to evaluate a potential for megaquake and tsunami at the possible scene of a megaquake region. In this session, we discuss how we assess the potential of megaquake and large-tsunami from geochemical and biological observations as well as geological and geophysical ones at trench site, landward seafloor slope and on-shore region. Type of presentation Oral and Poster presentation Invited papers Toshiya Kanamatsu (JAMSTEC) Hajime Naruse (Kyoto University)