*Ginta Motohashi1, Kohtaro Ujiie1, Takashi Sano2 (1.University of Tsukuba, 2.Department of Geology and Paleontology, National Museum of Nature and Science)
convener:Satoshi Ide(Department of Earth an Planetary Science, University of Tokyo), Hitoshi Hirose(Research Center for Urban Safety and Security, Kobe University), Kohtaro Ujiie(Graduate School of Life and Environmental Sciences, University of Tsukuba), Takahiro Hatano(Department of Earth and Space Science, Osaka University)