*Brook Tozer¹、Dan Bassett¹、Shuichi Kodaira²、Adrien Arnulf³、Ayako Nakanishi^4,2、Seiichi Miura^4,2、Gou Fujie²、Kimihiro Mochizuki⁴ (1.GNS Science、2.Japan Agency for Marine-Earth Science and Technology、3.University of Texas Institute for Geophysics、4.Earthquake Research Institute, the University of Tokyo)