| Magnitude | 5.7 |
| Alert | Strong |
| Depth | 49.1 km |
| Coordinates | 33.946, 141.422 |
| UTC time | 1984-09-25 04:39:23.300 |
Earthquake details
Tuesday, September 25, 1984 Earthquake
The earthquake hit Japan on Tuesday, September 25, 1984 at 04:39 UTC with a magnitude of 5.7. The closest known location in the current dataset is Isumi (Japan - JP), about 170.6 km away. The epicenter is located at longitude 141.422 and latitude 33.946.
| Location | Mobara |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1984-09-25
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.4
Fujisawa
Japan · 2026-08-21 12:02 UTC
99.5 km
M 4.8
Chiba
Japan · 2026-08-14 09:58 UTC
41.1 km
M 4.5
Chiba
Japan · 2026-07-16 16:04 UTC
45.2 km
M 4.6
Yokohama
Japan · 2026-06-06 11:29 UTC
95.2 km
M 4.3
Chiba
Japan · 2026-05-23 03:34 UTC
66.3 km
M 5.0
Chiba
Japan · 2026-04-16 14:43 UTC
90.7 km
M 4.6
Chiba
Japan · 2026-02-12 19:51 UTC
47.5 km
M 5.1
Chiba
Japan · 2025-12-21 06:58 UTC
99.1 km
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.