Alaska earthquakes

M2.5 earthquake 123 km S of Unalaska, Alaska

A magnitude 2.5 earthquake struck 123 km S of Unalaska, Alaska on Sun, Feb 13, 2022, 5:14 AM AKST (14:14 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M5.1 82 km SSW of Unalaska, 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: 2.5 (ml), micro
Local time: Sun, Feb 13, 2022, 5:14 AM AKST
UTC: 2022-02-13 14:14:04 UTC
Depth: 4.9 km (3.0 mi), shallow
Epicenter: 52.769° N, 166.714° 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 4.9 km horizontally, 9.9 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 238°, poorly surrounded by stations
Stations used: 23

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast123 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 185 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of 185.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000h26c (also filed as ak0222102d7o). Read Sun, Sep 27, 2026, 9:42 PM UTC.