Magnitude 7.4 NEAR THE SOUTH COAST OF HONSHU, JAPAN
Sunday, September 05, 2004 at 14:57:18 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
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Magnitude
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7.4
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Date-Time
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Sunday, September 05, 2004 at 14:57:18 (UTC) - Coordinated Universal Time
Sunday, September 05, 2004 at 11:57:18 PM local time at epicenter
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Location
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33.19N 137.06E
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Depth
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10 kilometers
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Region
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NEAR THE SOUTH COAST OF HONSHU, JAPAN
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Reference
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175 km (110 miles) SSE of Tsu, Honshu, Japan
175 km (110 miles) SSW of Hamamatsu, Honshu, Japan
210 km (130 miles) ESE of Wakayama, Honshu, Japan
370 km (230 miles) SW of TOKYO, Japan
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Location Quality
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Error estimate: horizontal +/- 3.3 km; depth fixed by location program
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Location Quality
Parameters
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Nst=477, Nph=477, Dmin=385.6 km, Rmss=0.89 sec, Erho=3.3 km, Erzz=0 km, Gp=27.5 degrees
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Source
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USGS NEIC (WDCS-D)
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Remarks
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About forty people injured in the Kyoto area. Felt in much of southwestern Japan and as far north as Tokyo. Tsunamis were observed with wave heights of 86 cm at Kushimoto and 56 cm at Owase. Power outages occured at Wakayama and a fire occurred at Sakai. Recorded (5L JMA) in Wakayama and Mie; (4 JMA) in Aichi, Fukui, Gifu, Hyogo, Kyoto, Nara, Osaka, Shiga and Tottori; (3 JMA) in Chiba, Hiroshima, Ishikawa, Kanagawa, Nagano, Okayama, Shimane, Shizuoka, Tokyo and Yamanashi; (2 JMA) in Gumma, Ibaraki, Niigata, Saitama, Tochigi and Yamaguchi; (1 JMA) in Miyagi Prefectures. Recorded (3 JMA) in Kagawa, Kochi and Tokushima; (2 JMA) in Ehime Prefectures, Shikoku. Recorded (1 JMA) in Fukuoka, Kumamoto, Miyazaki, Oita and Saga Prefectures, Kyushu. Also recorded (3 JMA) on Hachijo- jima, Kozu-shima, Miyake-jima, Nii-jima and O-shima; (2 JMA) on Dogo, Mikura-jima and in the Dozen islands; (1 JMA) on Sadago-shima.
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News Release
Location Map
Did You Feel It?
Report shaking and damage at your location.
Historical Seismicity
Theoretical P-Wave Travel Times
Moment Tensor Solution
Historical Moment Tensor Solutions
Energy and Broadband Solution
Phase (Arrival Time) Data
Seismic Record Section
Seismic Hazard Map
Earthquake Information for Japan
Earthquakes in 2004, Magnitude 7 and Greater
Earthquakes: Frequently Asked Questions
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News Links
- Elements wreak havoc on Japanese
- Two strong quakes hit Japan
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NB: The official magnitude for this earthquake is indicated at the top of this page. This was the best available estimate of the earthquake's size, at the time that this page was created. Other magnitudes associated with web pages linked from here are those determined at various times following the earthquake with different types of seismic data. Although, given the data used, they are legitimate estimates of magnitude they are not considered the official magnitude.
The region name is an automatically generated name from the Flinn-Engdahl (F-E) seismic and geographical regionalization scheme. The boundaries of these regions are defined at one-degree intervals and therefore differ from irregular political boundaries.
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