| Magnitude | 5.9 |
| Alert | Strong |
| Depth | 84.5 km |
| Coordinates | 35.816, 140.093 |
| UTC time | 1985-10-04 12:25:51.860 |
Earthquake details
Friday, October 4, 1985 Earthquake
The earthquake hit Japan on Friday, October 4, 1985 at 12:25 UTC with a magnitude of 5.9. The closest known location in the current dataset is Shiroi (Japan - JP), about 3.0 km away. The epicenter is located at longitude 140.093 and latitude 35.816.
| Location | Chiba |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1985-10-04
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.0
Tokyo
Japan · 2026-04-05 23:17 UTC
|
56.6 km |
|
M 4.9
Kashiwa
Japan · 2026-04-01 01:06 UTC
|
31.8 km |
|
M 4.1
Fujisawa
Japan · 2026-03-28 10:36 UTC
|
109.2 km |
|
M 4.4
Isumi
Japan · 2026-02-19 08:24 UTC
|
83.4 km |
|
M 4.1
Ōta
Japan · 2026-02-15 02:52 UTC
|
72.0 km |
|
M 4.3
Ōta
Japan · 2026-02-09 12:27 UTC
|
70.9 km |
|
M 4.2
Saitama
Japan · 2026-02-06 15:58 UTC
|
42.7 km |
|
M 4.5
Sakura
Japan · 2026-02-05 00:19 UTC
|
39.9 km |
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.