| Magnitude | 5.6 |
| Alert | Strong |
| Depth | 10.0 km |
| Coordinates | 37.193, 138.745 |
| UTC time | 2004-10-23 09:57:26.420 |
Earthquake details
Saturday, October 23, 2004 Earthquake
The earthquake hit Japan on Saturday, October 23, 2004 at 09:57 UTC with a magnitude of 5.6. The closest known location in the current dataset is Tōkamachi (Japan - JP), about 6.9 km away. The epicenter is located at longitude 138.745 and latitude 37.193.
| Location | Minamiuonuma |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 2004-10-23
Closest countries
The 12 closest cities near the epicenter.
| Tōkamachi | 6.9 km |
| Ojiya | 12.9 km |
| Minamiuonuma | 16.8 km |
| Muikamachi | 18.7 km |
| Uonuma | 20.1 km |
| Kashiwazaki | 25.9 km |
| Nagaoka | 30.1 km |
| Mitsuke | 41.4 km |
| Jōetsu | 45.4 km |
| Myoko | 47.3 km |
| Sanjō | 50.5 km |
| Tsubame | 54.9 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.9
Maebashi
Japan · 2026-03-15 05:06 UTC
|
102.7 km |
|
M 4.8
Niigata
Japan · 2026-02-13 04:58 UTC
|
64.7 km |
|
M 4.6
Kiryū
Japan · 2025-10-26 03:04 UTC
|
85.3 km |
|
M 4.3
Nagaoka
Japan · 2025-09-15 19:00 UTC
|
53.7 km |
|
M 4.2
Aizu-Wakamatsu
Japan · 2025-06-10 18:14 UTC
|
83.3 km |
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