Alaska earthquakes

M2.1 earthquake 47 km WSW of Nikolski, Alaska

A magnitude 2.1 earthquake struck 47 km WSW of Nikolski, Alaska on Mon, Jun 28, 2021, 4:06 AM AKDT (12:06 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M4.2 74 km WNW 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: 2.1 (ml), micro
Local time: Mon, Jun 28, 2021, 4:06 AM AKDT
UTC: 2021-06-28 12:06:22 UTC
Depth: 7.4 km (4.6 mi), shallow
Epicenter: 52.805° N, 169.532° 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.

Stations used: 19

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast232 kmWSW

Nearby

Within 100 km, magnitude 1.5 and up: 66 in the 60 days after this one and 11 in the 30 days before it.

After

The first 60 of 66.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021888dnr4 (also filed as av91293126). Read Wed, Sep 30, 2026, 1:55 AM UTC.