Alaska earthquakes

M2.5 earthquake 6 km SE of Unalaska, Alaska

A magnitude 2.5 earthquake struck 6 km SE of Unalaska, Alaska on Wed, Jun 18, 2025, 9:48 AM AKDT (17:48 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M5.3 23 km N of Dutch Harbor, 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: 2.5 (ml), micro
Local time: Wed, Jun 18, 2025, 9:48 AM AKDT
UTC: 2025-06-18 17:48:40 UTC
Depth: 12.5 km (7.8 mi), shallow
Epicenter: 53.832° N, 166.463° 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 1.7 km horizontally, 2.3 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 181°, poorly surrounded by stations
Stations used: 15

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast7 kmSE

Nearby

Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 72 in the 30 days before it.

After

The first 60 of 143.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ql6p (also filed as av93641871, ak0257rs8e7a). Read Wed, Sep 30, 2026, 9:39 AM UTC.