Alaska earthquakes

M2.5 earthquake 138 km E of McCarthy, Alaska

A magnitude 2.5 earthquake struck 138 km E of McCarthy, Alaska on Wed, Mar 8, 2023, 1:16 AM AKST (10:16 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.3 124 km E of McCarthy, 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: Wed, Mar 8, 2023, 1:16 AM AKST
UTC: 2023-03-08 10:16:39 UTC
Depth: 5.0 km (3.1 mi), shallow
Epicenter: 61.400° N, 140.326° 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 1.5 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.04
Depth from: Operator assigned
Station coverage gap: 53°
Stations used: 69

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 17 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000ji4c (also filed as ak02332z23kb). Read Tue, Sep 29, 2026, 3:52 AM UTC.