| Magnitude | 5.0 |
| Alert | Strong |
| Depth | 181.7 km |
| Coordinates | 17.037, 145.698 |
| UTC time | 1991-10-21 22:44:48.410 |
Earthquake details
Monday, October 21, 1991 Earthquake
The earthquake hit Northern Mariana Islands on Monday, October 21, 1991 at 22:44 UTC with a magnitude of 5.0. The closest known location in the current dataset is Saipan (Northern Mariana Islands - MP), about 203.2 km away. The epicenter is located at longitude 145.698 and latitude 17.037.
| Location | Saipan |
| Country | Northern Mariana Islands (MP) |
| Severity | Strong |
Earthquake map 1991-10-21
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.0
Saipan
Northern Mariana Islands · 2026-03-25 15:12 UTC
|
188.6 km |
|
M 4.5
Saipan
Northern Mariana Islands · 2026-03-04 10:17 UTC
|
206.7 km |
|
M 4.6
Saipan
Northern Mariana Islands · 2025-11-27 12:26 UTC
|
270.4 km |
|
M 4.5
Saipan
Northern Mariana Islands · 2025-11-21 13:46 UTC
|
147.3 km |
|
M 4.5
Saipan
Northern Mariana Islands · 2025-11-11 01:53 UTC
|
268.4 km |
|
M 4.4
Saipan
Northern Mariana Islands · 2025-11-06 11:21 UTC
|
243.4 km |
|
M 4.3
Saipan
Northern Mariana Islands · 2025-09-28 23:57 UTC
|
300.8 km |
|
M 4.5
Saipan
Northern Mariana Islands · 2025-08-21 05:57 UTC
|
156.0 km |
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.