Alaska earthquakes

M3.1 earthquake 48 km SSE of Unalaska, Alaska

A magnitude 3.1 earthquake struck 48 km SSE of Unalaska, Alaska on Fri, Apr 26, 2024, 4:02 PM AKDT (00:02 UTC), 81 km (50 mi) below the surface.

A larger quake followed: M3.5 67 km SW 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: 3.1 (ml), minor
Local time: Fri, Apr 26, 2024, 4:02 PM AKDT
UTC: 2024-04-27 00:02:38 UTC
Depth: 80.9 km (50.3 mi), intermediate-depth
Epicenter: 53.506° N, 166.149° 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 12.1 km horizontally, 28.5 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 235°, poorly surrounded by stations
Stations used: 12

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast48 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 135 in the 60 days after this one and 66 in the 30 days before it.

After

The first 60 of 135.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000muef (also filed as ak0245f5febs). Read Mon, Sep 28, 2026, 11:53 PM UTC.