| Magnitude | 5.1 |
| Alert | Strong |
| Depth | 53.7 km |
| Coordinates | 35.442, 139.132 |
| UTC time | 1987-10-17 18:41:10.380 |
Earthquake details
Saturday, October 17, 1987 Earthquake
The earthquake hit Japan on Saturday, October 17, 1987 at 18:41 UTC with a magnitude of 5.1. The closest known location in the current dataset is Hadano (Japan - JP), about 11.5 km away. The epicenter is located at longitude 139.132 and latitude 35.442.
| Location | Aihara |
| Country | Japan (JP) |
| Severity | Strong |
Earthquake map 1987-10-17
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.0
Tokyo
Japan · 2026-04-05 23:17 UTC
|
41.4 km |
|
M 4.9
Kashiwa
Japan · 2026-04-01 01:06 UTC
|
95.1 km |
|
M 4.1
Fujisawa
Japan · 2026-03-28 10:36 UTC
|
51.0 km |
|
M 4.5
Itō
Japan · 2026-03-16 11:37 UTC
|
69.1 km |
|
M 4.9
Maebashi
Japan · 2026-03-15 05:06 UTC
|
106.8 km |
|
M 4.1
Ōta
Japan · 2026-02-15 02:52 UTC
|
98.9 km |
|
M 4.3
Ōta
Japan · 2026-02-09 12:27 UTC
|
87.8 km |
|
M 4.2
Saitama
Japan · 2026-02-06 15:58 UTC
|
75.7 km |
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.