Alaska earthquakes

M3.1 earthquake 95 km W of Dutch Harbor, Alaska

A magnitude 3.1 earthquake struck 95 km W of Dutch Harbor, Alaska on Sun, Oct 22, 2023, 5:59 AM AKDT (13:59 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.3 99 km W of Dutch Harbor, Alaska. This one was a foreshock.

Dutch Harbor forecast More in Alaska

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, local (Richter)), minor
Magnitude from: USGS National Earthquake Information Center
Local time: Sun, Oct 22, 2023, 5:59 AM AKDT
UTC: 2023-10-22 13:59:00 UTC
Depth: 12.6 km (7.8 mi), shallow
Epicenter: 53.967° N, 167.995° 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
3.1	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.097 · 14 stations
2.7	ML, local (Richter)	Alaska Earthquake Center	Preliminary
2.76	ML, local (Richter)	AV	Final · ±0.250614118587372 · 24 stations

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 1.9 km horizontally, 3.5 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 178°
Stations used: 22

Nearest places

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

Dutch Harbor, AlaskaPopulation 4,376. Forecast96 kmW

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 29 in the 30 days before it.

After

The first 60 of 132.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000l5up (also filed as av92091371, ak023dk3mntl). Read Fri, Oct 2, 2026, 6:01 PM UTC.