Alaska earthquakes

M3.0 earthquake 78 km ESE of Sand Point, Alaska

A magnitude 3.0 earthquake struck 78 km ESE of Sand Point, Alaska on Tue, Dec 21, 2021, 5:11 PM AKST (02:11 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M3.3 138 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: 3.0 (ml), minor
Local time: Tue, Dec 21, 2021, 5:11 PM AKST
UTC: 2021-12-22 02:11:27 UTC
Depth: 14.4 km (8.9 mi), shallow
Epicenter: 55.066° N, 159.363° 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 4.3 km horizontally, 7.0 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 158°
Stations used: 24

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast78 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 67 in the 30 days before it.

After

The first 60 of 132.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000gcbd (also filed as ak021gcsku4u). Read Wed, Sep 23, 2026, 9:27 AM UTC.