Alaska earthquakes

M2.8 earthquake 117 km S of Sand Point, Alaska

A magnitude 2.8 earthquake struck 117 km S of Sand Point, Alaska on Mon, Aug 30, 2021, 10:52 AM AKDT (18:52 UTC), 35 km (22 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: 2.8 (ml), micro
Local time: Mon, Aug 30, 2021, 10:52 AM AKDT
UTC: 2021-08-30 18:52:56 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 54.285° N, 160.567° 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 5.0 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 205°, poorly surrounded by stations
Stations used: 42

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast117 kmS

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 us7000f5vp (also filed as ak021b4j31vt). Read Wed, Sep 23, 2026, 4:43 PM UTC.