Alaska earthquakes

M2.8 earthquake 101 km SSE of Sand Point, Alaska

A magnitude 2.8 earthquake struck 101 km SSE of Sand Point, Alaska on Thu, Aug 12, 2021, 5:18 AM AKDT (13:18 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.5 123 km SSE of Perryville, 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: Thu, Aug 12, 2021, 5:18 AM AKDT
UTC: 2021-08-12 13:18:54 UTC
Depth: 23.3 km (14.5 mi), shallow
Epicenter: 54.529° N, 159.779° 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 2.9 km horizontally, 9.0 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 256°, poorly surrounded by stations
Stations used: 17

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast101 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 us7000f2tx (also filed as ak021aao8cbl). Read Wed, Sep 23, 2026, 7:18 PM UTC.