Alaska earthquakes

M2.5 earthquake 97 km SSW of Unalaska, Alaska

A magnitude 2.5 earthquake struck 97 km SSW of Unalaska, Alaska on Fri, Jul 31, 2026, 10:30 AM AKDT (18:30 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.0 92 km SSW 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.

Open the live map with earthquakes

The earthquake

Magnitude: 2.5 (ml), micro
Local time: Fri, Jul 31, 2026, 10:30 AM AKDT
UTC: 2026-07-31 18:30:58 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 53.042° N, 166.974° 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 3.2 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.12
Depth from: Operator assigned
Station coverage gap: 225°, poorly surrounded by stations
Stations used: 12

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast97 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 156 since this one and 56 in the 30 days before it.

After

The first 60 of 156.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ticr (also filed as aka2026pbdrgc). Read Tue, Sep 29, 2026, 2:17 AM UTC.