| Magnitude | 5.2 |
| Alert | Strong |
| Depth | 10.8 km |
| Coordinates | 37.240, 138.897 |
| UTC time | 2004-10-23 12:44:28.390 |
Earthquake details
Saturday, October 23, 2004 Earthquake
The earthquake hit Japan on Saturday, October 23, 2004 at 12:44 UTC with a magnitude of 5.2. The closest known location in the current dataset is Uonuma (Japan - JP), about 5.8 km away. The epicenter is located at longitude 138.897 and latitude 37.240.
| Location | Nagaoka |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 2004-10-23
Closest countries
The 12 closest cities near the epicenter.
| Uonuma | 5.8 km |
| Ojiya | 10.9 km |
| Tōkamachi | 16.6 km |
| Minamiuonuma | 17.6 km |
| Muikamachi | 19.3 km |
| Nagaoka | 23.7 km |
| Mitsuke | 32.8 km |
| Kashiwazaki | 33.8 km |
| Sanjō | 42.2 km |
| Tsubame | 47.3 km |
| Maki | 56.8 km |
| Shirone | 59.3 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.8
Niigata
Japan · 2026-02-13 04:58 UTC
|
58.5 km |
|
M 4.3
Nagaoka
Japan · 2025-09-15 19:00 UTC
|
48.1 km |
|
M 4.2
Aizu-Wakamatsu
Japan · 2025-06-10 18:14 UTC
|
69.0 km |
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