Alaska earthquakes

M3.0 earthquake 52 km SSE of Sand Point, Alaska

A magnitude 3.0 earthquake struck 52 km SSE of Sand Point, Alaska on Tue, Aug 17, 2021, 9:30 AM AKDT (17:30 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M3.7 109 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: 3.0 (ml), minor
Local time: Tue, Aug 17, 2021, 9:30 AM AKDT
UTC: 2021-08-17 17:30:27 UTC
Depth: 29.4 km (18.2 mi), shallow
Epicenter: 54.880° N, 160.322° 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 3.0 km horizontally, 11.5 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 160°
Stations used: 33

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast52 kmSSE

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 us6000f7n9 (also filed as ak021aj0dbyn). Read Wed, Sep 23, 2026, 8:09 AM UTC.