Alaska earthquakes

M3.2 earthquake 43 km ESE of Akutan, Alaska

A magnitude 3.2 earthquake struck 43 km ESE of Akutan, Alaska on Mon, Dec 21, 2020, 8:54 AM AKST (17:54 UTC), 75 km (47 mi) below the surface.

A larger quake followed: M5.1 Unimak Island region, 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: 3.2 (ml), minor
Local time: Mon, Dec 21, 2020, 8:54 AM AKST
UTC: 2020-12-21 17:54:24 UTC
Depth: 75.0 km (46.6 mi), intermediate-depth
Epicenter: 54.005° N, 165.143° 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 9.4 km horizontally, 8.6 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 190°, poorly surrounded by stations
Stations used: 28

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast44 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 85 in the 60 days after this one and 46 in the 30 days before it.

After

The first 60 of 85.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000d4am (also filed as ak020gd1rjr1). Read Mon, Sep 28, 2026, 4:20 AM UTC.