M5.1 earthquake 287 km SSE of Georgetown, Saint Helena

A magnitude 5.1 earthquake struck 287 km SSE of Georgetown, Saint Helena on Tue, Mar 25, 1980, 12:46 PM GMT-1 (13:46 UTC), 10 km (6 mi) below the surface.

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The earthquake

Magnitude: 5.1 (mb), moderate
Local time: Tue, Mar 25, 1980, 12:46 PM GMT-1
UTC: 1980-03-25 13:46:53 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 10.263° S, 13.268° W
Region: Saint Helena
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED
Stations used: 45

Nearby

Within 100 km, magnitude 2.1 and up: 0 in the 60 days after this one and 0 in the 30 days before it.

None recorded.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000167f (also filed as gcmtb032580a, gcmt19800325134653, iscgem650195). Read Tue, Sep 22, 2026, 8:19 AM UTC.