Alaska earthquakes

M2.5 earthquake 67 km S of Unalaska, Alaska

A magnitude 2.5 earthquake struck 67 km S of Unalaska, Alaska on Mon, Jan 1, 2024, 7:17 AM AKST (16:17 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.3 121 km S of Unalaska, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (ml), micro
Local time
UTC
2024-01-01 16:17:58 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
53.273° N, 166.701° 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 2.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
229°, poorly surrounded by stations
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 130 in the 60 days after this one and 53 in the 30 days before it.

After

The first 60 of 130.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000m4xd (also filed as ak0241x61vk). Read Mon, Sep 28, 2026, 5:37 PM UTC.