Alaska earthquakes

M3.2 earthquake 41 km ESE of Unalaska, Alaska

A magnitude 3.2 earthquake struck 41 km ESE of Unalaska, Alaska on Sun, Sep 13, 2020, 9:59 PM AKDT (05:59 UTC), 36 km (22 mi) below the surface.

A larger quake followed: M4.5 47 km NE of Akutan, Alaska. This one was a foreshock.

Unalaska 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: Sun, Sep 13, 2020, 9:59 PM AKDT
UTC: 2020-09-14 05:59:31 UTC
Depth: 36.0 km (22.4 mi), shallow
Epicenter: 53.743° N, 165.937° 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 2.7 km horizontally, 19.7 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 178°
Stations used: 39

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast42 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 80 in the 60 days after this one and 49 in the 30 days before it.

After

The first 60 of 80.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c2yp (also filed as ak020burzewk). Read Sun, Sep 27, 2026, 2:16 AM UTC.