Alaska earthquakes

M2.5 earthquake 80 km S of Unalaska, Alaska

A magnitude 2.5 earthquake struck 80 km S of Unalaska, Alaska on Fri, Jan 21, 2022, 11:26 PM AKST (08:26 UTC), 35 km (21 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.

Open the live map with earthquakes

The earthquake

Magnitude: 2.5 (ml), micro
Local time: Fri, Jan 21, 2022, 11:26 PM AKST
UTC: 2022-01-22 08:26:51 UTC
Depth: 34.6 km (21.5 mi), shallow
Epicenter: 53.162° N, 166.716° 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 4.6 km horizontally, 11.8 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 222°, 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. Forecast80 kmS

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 101 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000glid (also filed as ak02210iqsu5). Read Sun, Sep 27, 2026, 11:57 PM UTC.