Alaska earthquakes

M2.7 earthquake 136 km SSE of Sand Point, Alaska

A magnitude 2.7 earthquake struck 136 km SSE of Sand Point, Alaska on Tue, Aug 17, 2021, 6:04 AM AKDT (14:04 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.9 105 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: Tue, Aug 17, 2021, 6:04 AM AKDT
UTC: 2021-08-17 14:04:37 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 54.203° N, 159.698° 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 4.7 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.09
Depth from: Operator assigned
Station coverage gap: 220°, poorly surrounded by stations
Stations used: 25

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast136 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 us7000f4du (also filed as ak021aiyfhgh). Read Thu, Sep 24, 2026, 4:31 AM UTC.