Alaska earthquakes

M3.1 earthquake 46 km SSW of Unalaska, Alaska

A magnitude 3.1 earthquake struck 46 km SSW of Unalaska, Alaska on Mon, May 16, 2022, 12:42 AM AKDT (08:42 UTC), 78 km (49 mi) below the surface.

A larger quake followed: M4.3 93 km ENE of Nikolski, 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: 3.1 (ml), minor
Local time: Mon, May 16, 2022, 12:42 AM AKDT
UTC: 2022-05-16 08:42:37 UTC
Depth: 78.3 km (48.7 mi), intermediate-depth
Epicenter: 53.483° N, 166.765° 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 11.4 km horizontally, 18.4 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 179°
Stations used: 20

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast46 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 75 in the 30 days before it.

After

The first 60 of 146.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000i2w9 (also filed as ak0226923qy7). Read Sun, Sep 27, 2026, 6:49 PM UTC.