| Magnitude | 5.7 |
| Alert | Strong |
| Depth | 10.0 km |
| Coordinates | 37.305, 138.655 |
| UTC time | 2004-10-23 10:45:57.000 |
Earthquake details
Saturday, October 23, 2004 Earthquake
The earthquake hit Japan on Saturday, October 23, 2004 at 10:45 UTC with a magnitude of 5.7. The closest known location in the current dataset is Kashiwazaki (Japan - JP), about 11.6 km away. The epicenter is located at longitude 138.655 and latitude 37.305.
| Location | Nagaoka |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 2004-10-23
Closest countries
The 12 closest cities near the epicenter.
| Kashiwazaki | 11.6 km |
| Ojiya | 12.9 km |
| Tōkamachi | 21.5 km |
| Nagaoka | 23.6 km |
| Uonuma | 28.0 km |
| Minamiuonuma | 31.5 km |
| Muikamachi | 33.4 km |
| Mitsuke | 35.4 km |
| Jōetsu | 41.0 km |
| Sanjō | 43.4 km |
| Tsubame | 46.6 km |
| Myoko | 47.2 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.8
Niigata
Japan · 2026-02-13 04:58 UTC
|
54.8 km |
|
M 4.3
Nagaoka
Japan · 2025-09-15 19:00 UTC
|
43.7 km |
|
M 4.2
Aizu-Wakamatsu
Japan · 2025-06-10 18:14 UTC
|
86.4 km |
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