Alaska earthquakes

M3.1 earthquake 123 km E of McCarthy, Alaska

A magnitude 3.1 earthquake struck 123 km E of McCarthy, Alaska on Tue, Apr 4, 2023, 2:18 AM AKDT (10:18 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: 3.1 (ml), minor
Local time: Tue, Apr 4, 2023, 2:18 AM AKDT
UTC: 2023-04-04 10:18:10 UTC
Depth: 4.6 km (2.9 mi), shallow
Epicenter: 61.337° N, 140.613° 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 1.4 km horizontally, 7.6 km in depth
Magnitude uncertainty: ±0.03
Depth from: From location
Station coverage gap: 74°
Stations used: 25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 24 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k1wf (also filed as ak0234bmku6a). Read Tue, Sep 29, 2026, 6:33 PM UTC.