Alaska earthquakes

M2.5 earthquake 115 km SSE of Sand Point, Alaska

A magnitude 2.5 earthquake struck 115 km SSE of Sand Point, Alaska on Sat, Aug 28, 2021, 10:55 AM AKDT (18:55 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M2.7 53 km SW 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: 2.5 (ml), micro
Local time: Sat, Aug 28, 2021, 10:55 AM AKDT
UTC: 2021-08-28 18:55:41 UTC
Depth: 21.2 km (13.2 mi), shallow
Epicenter: 54.398° N, 159.742° 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 3.4 km horizontally, 11.4 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 271°, poorly surrounded by stations
Stations used: 20

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast115 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 us7000fa4l (also filed as ak021b180z1q). Read Wed, Sep 23, 2026, 5:14 AM UTC.