*Shintaro Yamasaki1, Toshitaka Kamai1, Tatsuya Watanabe2 (1.Disaster Prevention Research Institute, Kyoto University, 2.Kitami Institute of Technology)
convener:Wataru Tanikawa(Japan Agency for Marine-Earth Science and Technology, Kochi Instutute for Core Sample Research), Tokuyama Hidekazu(Center for advanced marine core research, Kochi University), Shintaro Yamasaki(Disaster Prevention Research Institute, Kyoto University)