Alaska earthquakes

M3.3 earthquake 119 km E of McCarthy, Alaska

A magnitude 3.3 earthquake struck 119 km E of McCarthy, Alaska on Sat, Feb 4, 2023, 9:13 AM AKST (18:13 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.7 Yukon, Canada. 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: 3.3 (ml), minor
Local time: Sat, Feb 4, 2023, 9:13 AM AKST
UTC: 2023-02-04 18:13:28 UTC
Depth: 5.0 km (3.1 mi), shallow
Epicenter: 61.512° N, 140.685° 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, 1.9 km in depth
Magnitude uncertainty: ±0.03
Depth from: Operator assigned
Station coverage gap: 53°
Stations used: 58

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 41 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000jlfn (also filed as ak0231m6lsm9). Read Tue, Sep 29, 2026, 12:38 PM UTC.