| Magnitude | 6.0 |
| Alert | Strong |
| Depth | 25.0 km |
| Coordinates | 18.820, 147.221 |
| UTC time | 1966-04-20 16:26:19.680 |
Earthquake details
Wednesday, April 20, 1966 Earthquake
The earthquake hit Mariana Islands region on Wednesday, April 20, 1966 at 16:26 UTC with a magnitude of 6.0. The closest known location in the current dataset is Saipan, about 430.9 km away. The epicenter is located at longitude 147.221 and latitude 18.820.
| Location | Mariana Islands region |
| Country | Mariana Islands region |
| Severity | Strong |
Earthquake map 1966-04-20
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.4
Pagan region
Northern Mariana Islands · 2026-06-29 21:30 UTC
55.8 km
M 4.5
Mariana Islands region
Unknown · 2026-06-22 05:03 UTC
89.0 km
M 4.9
Saipan
Northern Mariana Islands · 2026-06-09 16:48 UTC
73.0 km
M 5.2
Saipan
Northern Mariana Islands · 2026-04-02 06:13 UTC
97.4 km
M 4.4
Mariana Islands region
Unknown · 2026-03-11 11:58 UTC
94.1 km
M 4.2
Pagan region
Northern Mariana Islands · 2026-03-02 16:55 UTC
61.2 km
M 4.0
Mariana Islands region
Unknown · 2025-08-05 16:57 UTC
61.2 km
M 4.5
Mariana Islands region
Unknown · 2025-06-25 12:28 UTC
99.5 km
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