Alaska earthquakes

M2.8 earthquake 57 km SE of Unalaska, Alaska

A magnitude 2.8 earthquake struck 57 km SE of Unalaska, Alaska on Sat, May 27, 2023, 10:38 PM AKDT (06:38 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M3.8 Fox Islands, Aleutian Islands, 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: 2.8 (ml), micro
Local time: Sat, May 27, 2023, 10:38 PM AKDT
UTC: 2023-05-28 06:38:47 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 53.482° N, 165.977° 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 2.3 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.10
Depth from: Operator assigned
Station coverage gap: 207°, 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. Forecast57 kmSE

Nearby

Within 100 km, magnitude 1.5 and up: 154 in the 60 days after this one and 120 in the 30 days before it.

After

The first 60 of 154.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000k5mp (also filed as ak0236svc62r). Read Wed, Sep 30, 2026, 6:50 AM UTC.