| Magnitude | 5.2 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 21.494, 143.632 |
| UTC time | 1981-12-28 17:40:49.770 |
Earthquake details
Monday, December 28, 1981 Earthquake
The earthquake hit Mariana Islands region on Monday, December 28, 1981 at 17:40 UTC with a magnitude of 5.2. The closest known location in the current dataset is Saipan, about 734.3 km away. The epicenter is located at longitude 143.632 and latitude 21.494.
| Location | Mariana Islands region |
| Country | Mariana Islands region |
| Severity | Strong |
Earthquake map 1981-12-28
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.3
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Unknown · 2026-07-15 21:40 UTC
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M 4.5
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M 4.4
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M 4.3
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M 4.2
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M 4.7
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M 4.4
Volcano Islands
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M 4.2
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Unknown · 2026-01-31 19:11 UTC
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