Alaska earthquakes

M2.9 earthquake 52 km SW of Unalaska, Alaska

A magnitude 2.9 earthquake struck 52 km SW of Unalaska, Alaska on Sun, Sep 24, 2023, 4:16 AM AKDT (12:16 UTC), 25 km (15 mi) below the surface.

A larger quake followed: M4.3 96 km S of Unalaska, Alaska. This one was a foreshock.

Unalaska 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: 2.9 (ml), micro
Local time: Sun, Sep 24, 2023, 4:16 AM AKDT
UTC: 2023-09-24 12:16:01 UTC
Depth: 24.6 km (15.3 mi), shallow
Epicenter: 53.533° N, 167.083° 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 4.3 km horizontally, 7.3 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 180°
Stations used: 22

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast52 kmSW

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 63 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000kxvs (also filed as ak023c9rqapj). Read Mon, Sep 28, 2026, 3:37 PM UTC.