Alaska earthquakes

M2.6 earthquake 38 km SSE of Unalaska, Alaska

A magnitude 2.6 earthquake struck 38 km SSE of Unalaska, Alaska on Sun, Feb 23, 2025, 7:15 PM AKST (04:15 UTC), 65 km (40 mi) below the surface.

A larger quake followed: M3.9 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: 2.6 (ml), micro
Local time: Sun, Feb 23, 2025, 7:15 PM AKST
UTC: 2025-02-24 04:15:32 UTC
Depth: 64.7 km (40.2 mi), shallow
Epicenter: 53.553° N, 166.308° 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 12.9 km horizontally, 37.9 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 195°, poorly surrounded by stations
Stations used: 18

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast39 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 183 in the 60 days after this one and 113 in the 30 days before it.

After

The first 60 of 183.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000pm02 (also filed as ak0252j113tz). Read Tue, Sep 29, 2026, 9:31 PM UTC.