Affiliation: | (1) National Research Center for Disaster Prevention, Tennôdai 3-chôme, Sakura-mura, Niihari-gun, 305 Ibaraki-ken, Japan;(2) National Research Center for Disaster Prevention, Nijigahama 9-2, Hiratsuka-shi, 254 Kanagawa-ken, Japan;(3) Japan Marine Science and Technology Center, Natsushima 2-5, Yokosuka-shi, 237 Kanagawa-ken, Japan |