Alaska earthquakes

M3.8 earthquake 82 km ESE of Sand Point, Alaska

A magnitude 3.8 earthquake struck 82 km ESE of Sand Point, Alaska on Fri, Mar 12, 2021, 9:55 PM AKST (06:55 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M4.4 122 km SSE of Sand Point, Alaska. This one was a foreshock.

Sand Point forecast More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.8 (ml), minor
Local time: Fri, Mar 12, 2021, 9:55 PM AKST
UTC: 2021-03-13 06:55:51 UTC
Depth: 17.4 km (10.8 mi), shallow
Epicenter: 54.937° N, 159.408° W
Region: Alaska
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.

Location uncertainty: About 5.5 km horizontally, 9.7 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 159°
Stations used: 79

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Sand Point, AlaskaPopulation 1,064. Forecast82 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000dj6a (also filed as ak0213b6lhia). Read Thu, Sep 24, 2026, 9:43 AM UTC.