Alaska earthquakes

M2.6 earthquake 36 km ESE of Unalaska, Alaska

A magnitude 2.6 earthquake struck 36 km ESE of Unalaska, Alaska on Thu, Jun 17, 2021, 2:14 PM AKDT (22:14 UTC), 78 km (48 mi) below the surface.

A larger quake followed: M3.0 80 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: 2.6 (ml), micro
Local time: Thu, Jun 17, 2021, 2:14 PM AKDT
UTC: 2021-06-17 22:14:32 UTC
Depth: 77.8 km (48.4 mi), intermediate-depth
Epicenter: 53.760° N, 166.015° 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 14.4 km horizontally, 24.9 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 200°, poorly surrounded by stations
Stations used: 27

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast36 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 89 in the 60 days after this one and 6 in the 30 days before it.

After

The first 60 of 89.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000edzw (also filed as ak0217q7gvbn). Read Wed, Sep 23, 2026, 4:16 PM UTC.