Alaska earthquakes

M2.7 earthquake 102 km S of Sand Point, Alaska

A magnitude 2.7 earthquake struck 102 km S of Sand Point, Alaska on Thu, Aug 5, 2021, 5:36 AM AKDT (13:36 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.0 95 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: 2.7 (ml), micro
Local time: Thu, Aug 5, 2021, 5:36 AM AKDT
UTC: 2021-08-05 13:36:18 UTC
Depth: 17.5 km (10.9 mi), shallow
Epicenter: 54.425° N, 160.761° 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 3.9 km horizontally, 8.9 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 204°, poorly surrounded by stations
Stations used: 29

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast103 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 us6000f729 (also filed as ak0219z3kp63). Read Wed, Sep 23, 2026, 6:05 AM UTC.