Keiko Kuge, Kyoto University, Department of Geophysics, Kyoto, Japan, Takashi Furumura, ERI, Univ. Tokyo, Bunkyo-Ku, Japan, Mitsuyuki Hoshiba, Meteorological Res. Inst./JMA, Tsukuba, Japan, Naoji Koizumi, University of Shiga Prefec, Hikone, Japan, Kazuyuki Nakagawa, Jiji Press, Tokyo, Japan, Masayuki Obayashi, Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Shin'ichi Sakai, Univ Tokyo, Bunkyo-Ku Tokyo, Japan, Katsuhiko Shiomi, National Research Institute for Earth Science and Disaster Resilience (NIED), Tsukuba, Japan, Keiichi Tadokoro, Nagoya Univ., Nagoya, Japan, Satoru Tanaka, JAMSTEC, Yokosuka, Japan, Hiroshi Tsuruoka, Tokyo UNIV., Tokyo, Japan, Takahiko Uchide, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan and Makoto Yamano, University of Tokyo, Tokyo, Japan