Alaska earthquakes

M2.7 earthquake 39 km ESE of Unalaska, Alaska

A magnitude 2.7 earthquake struck 39 km ESE of Unalaska, Alaska on Thu, Jul 28, 2022, 4:28 AM AKDT (12:28 UTC), 61 km (38 mi) below the surface.

A larger quake followed: M5.3 67 km SSE of Akutan, 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: 2.7 (ml), micro
Local time: Thu, Jul 28, 2022, 4:28 AM AKDT
UTC: 2022-07-28 12:28:35 UTC
Depth: 61.2 km (38.0 mi), shallow
Epicenter: 53.693° N, 166.016° 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 8.0 km horizontally, 15.9 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 187°, poorly surrounded by stations
Stations used: 23

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast40 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 157 in the 60 days after this one and 67 in the 30 days before it.

After

The first 60 of 157.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000i85e (also filed as ak0229lumtbk). Read Mon, Sep 28, 2026, 1:11 AM UTC.