Keisuke Ariyoshi, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Jean-Paul Ampuero, Université Côte d'Azur, CNRS, IRD, OCA, Géoazur, Valbonne, France, Roland Burgmann, Univ California Berkeley, Seismological Laboratory, Berkeley, CA, United States, Toru Matsuzawa, Tohoku Univ, Grad Schl Sci, Sendai, Japan, Akira Hasegawa, Tohoku University, Sendai, Japan, Ryota Hino, Tohoku University, Graduate School of Science, Sendai, Japan and Takane Hori, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research and Development Center for Earthquake and Tsunami, Yokohama, Japan