Alaska earthquakes

M3.6 earthquake 40 km SSE of Unalaska, Alaska

A magnitude 3.6 earthquake struck 40 km SSE of Unalaska, Alaska on Sun, May 15, 2022, 7:44 AM AKDT (15:44 UTC), 75 km (47 mi) below the surface.

A larger quake followed: M4.3 93 km ENE of Nikolski, 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: 3.6 (mb), minor
Local time: Sun, May 15, 2022, 7:44 AM AKDT
UTC: 2022-05-15 15:44:07 UTC
Depth: 74.8 km (46.5 mi), intermediate-depth
Epicenter: 53.535° N, 166.297° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 5.4 km horizontally, 8.8 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 167°
Stations used: 40

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast41 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 150 in the 60 days after this one and 88 in the 30 days before it.

After

The first 60 of 150.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000hlbf (also filed as ak02267iqstp). Read Sun, Sep 27, 2026, 6:49 PM UTC.