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Earthquake Hazards Program

News Release

Magnitude 6.6 NEAR THE WEST COAST OF HONSHU, JAPAN
Saturday, October 23, 2004 at 08:56:00 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

The following is a revised REPEAT revised release by the United States Geological Survey, National Earthquake Information Center: A strong earthquake occurred NEAR THE WEST COAST OF HONSHU, JAPAN about 80 km (50 miles) south of Niigata or about 190 km (120 miles) northwest of Tokyo at 2:56 AM MDT, Oct 23, 2004 (5:56 PM local time in Japan). The magnitude and location may be revised when additional data and further analysis results are available.

At least 39 people killed, 3,183 injured and 6,000 buildings destroyed or damaged in Niigata Prefecture. A high-speed train derailed; several roads, bridges and rail lines damaged; at least 1,300 landslides and 11 fires occurred; several gas, water and power lines damaged in Niigata Prefecture. Felt in Chiba, Fukushima, Gumma, Kanagawa, Miyagi, Saitama and Tokyo Prefectures.

 


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