Alaska earthquakes

M3.8 earthquake 116 km SSW of False Pass, Alaska

A magnitude 3.8 earthquake struck 116 km SSW of False Pass, Alaska on Thu, Dec 10, 2020, 2:58 AM AKST (11:58 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M4.0 150 km S of False Pass, Alaska. This one was a foreshock.

Akutan 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: 3.8 (ml), minor
Local time: Thu, Dec 10, 2020, 2:58 AM AKST
UTC: 2020-12-10 11:58:00 UTC
Depth: 44.9 km (27.9 mi), shallow
Epicenter: 53.862° N, 163.971° 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 5.2 km horizontally, 9.7 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 166°
Stations used: 59

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast122 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 41 in the 30 days before it.

After

The first 60 of 108.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000cpxf (also filed as ak020furauca). Read Thu, Sep 24, 2026, 3:11 AM UTC.