Alaska earthquakes

M3.3 earthquake 70 km ESE of Egegik, Alaska

A magnitude 3.3 earthquake struck 70 km ESE of Egegik, Alaska on Tue, Feb 21, 2023, 4:17 PM AKST (01:17 UTC), 141 km (87 mi) below the surface.

A larger quake followed: M4.3 85 km NNW of Karluk, 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: 3.3 (ML, local (Richter)), minor
Magnitude from: Alaska Earthquake Center
Local time: Tue, Feb 21, 2023, 4:17 PM AKST
UTC: 2023-02-22 01:17:46 UTC
Depth: 140.6 km (87.4 mi), intermediate-depth
Epicenter: 57.932° N, 156.313° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
3.3	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
3.8	mb, body-wave	USGS National Earthquake Information Center	Reviewed · ±0.361 · 2 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 126

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 68 in the 30 days before it.

After

The first 60 of 168.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0232fo6kh0 (also filed as ak0232fo6kwh, us6000jqp7). Read Thu, Oct 1, 2026, 4:41 AM UTC.