Alaska earthquakes

M3.7 earthquake 31 km E of Akutan, Alaska

A magnitude 3.7 earthquake struck 31 km E of Akutan, Alaska on Sun, Aug 30, 2020, 6:45 PM AKDT (02:45 UTC), 87 km (54 mi) below the surface.

A larger quake followed: M4.3 71 km SE of Akutan, 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: 3.7 (ml), minor
Local time: Sun, Aug 30, 2020, 6:45 PM AKDT
UTC: 2020-08-31 02:45:42 UTC
Depth: 86.7 km (53.9 mi), intermediate-depth
Epicenter: 54.176° N, 165.297° 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 5.5 km horizontally, 6.8 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 182°, 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. Forecast31 kmE

Nearby

Within 100 km, magnitude 1.5 and up: 62 in the 60 days after this one and 36 in the 30 days before it.

After

The first 60 of 62.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000bhrx (also filed as ak020b7kla9h). Read Wed, Sep 30, 2026, 4:41 AM UTC.