Alaska earthquakes

M3.3 earthquake 45 km W of False Pass, Alaska

A magnitude 3.3 earthquake struck 45 km W of False Pass, Alaska on Fri, Dec 17, 2021, 1:33 AM AKST (10:33 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.5 88 km NW of False Pass, Alaska. This one was a foreshock.

King Cove 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: 3.3 (ml), minor
Local time: Fri, Dec 17, 2021, 1:33 AM AKST
UTC: 2021-12-17 10:33:41 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 54.794° N, 164.117° 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 3.6 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.08
Depth from: Operator assigned
Station coverage gap: 133°
Stations used: 58

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast119 kmWSW

Nearby

Within 100 km, magnitude 1.5 and up: 100 in the 60 days after this one and 29 in the 30 days before it.

After

The first 60 of 100.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000gd28 (also filed as ak021g4nsb5e). Read Wed, Sep 23, 2026, 12:18 PM UTC.