HR: 1340h
AN: OS23D-1360    [Abstracts]
TI: Numerical modeling of the September 5, 2004 Tokaido-Oki Earthquake Tsunami
AU: * Koshimura, S
EM: koshimuras@dri.ne.jp
AF: Disaster Reduction and Human Renovation Inst., 1-5-2 Wakinohama Kaigan-Dori, Chuo-Ku, Kobe, 651-0073 Japan
AU: Satake, K
EM: kenji.satake@aist.go.jp
AF: Active Fault Research Center,AIST, Site 7,1-1-1 Higashi, Tsukuba, 305-8567 Japan
AU: Terada, Y
EM: terada@hi-ho.ne.jp
AF: Hitachi Zosen Corporation, 2-2-11, Funamachi, Taisho-Ku, Osaka, 551-0022 Japan
AU: Kato, T
EM: teru@eri.u-tokyo.ac.jp
AF: Earthquake Research Institute, University of Tokyo, 1-1, Yayoi 1, Bunkyo-Ku, Tokyo, 113-0032 Japan
AB: On September 5, 2004, a series of earthquakes occurred off the coast of Kii peninsula, Japan. Tsunamis accompanied with the foreshock of JMA magnitude 6.9 occurred at 19:07, September 5, JST, and the mainshock of JMA magnitude 7.4 occurred at 23:57, September 5, JST. These tsunamis were observed at several tidal gauge stations along the Pacific coast in Japan, for instance, 86cm at Kushimoto, 81cm at Kozushima, and 61cm at Owase by the mainshock . We performed a numerical modeling of tsunami with non-linear shallow water equations. Based on the model results and observed tsunami records, we discuss the generation mechanisms and the characteristics of tsunami propagation along the Pacific coast.
DE: 7223 Seismic hazard assessment and prediction
DE: 4564 Tsunamis and storm surges
SC: Ocean Sciences [OS]
MN: 2004 AGU Fall Meeting