Alaska earthquakes

M3.0 earthquake 21 km SSE of Unalaska, Alaska

A magnitude 3.0 earthquake struck 21 km SSE of Unalaska, Alaska on Fri, Dec 20, 2024, 7:24 AM AKST (16:24 UTC), 72 km (44 mi) below the surface.

A larger quake followed: M5.6 86 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: 3.0 (ml), minor
Local time: Fri, Dec 20, 2024, 7:24 AM AKST
UTC: 2024-12-20 16:24:39 UTC
Depth: 71.6 km (44.5 mi), intermediate-depth
Epicenter: 53.690° N, 166.437° 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 14.4 km horizontally, 20.2 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 192°, 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. Forecast21 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 82 in the 30 days before it.

After

The first 60 of 173.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000pk8p (also filed as ak024gbdgd8i). Read Tue, Sep 29, 2026, 2:07 PM UTC.