Alaska earthquakes

M1.7 earthquake 50 km SW of Unalaska, Alaska

A magnitude 1.7 earthquake struck 50 km SW of Unalaska, Alaska on Sat, Jan 16, 2021, 8:14 PM AKST (05:14 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M4.0 68 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.

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The earthquake

Magnitude: 1.7 (ml), micro
Local time: Sat, Jan 16, 2021, 8:14 PM AKST
UTC: 2021-01-17 05:14:32 UTC
Depth: 13.1 km (8.1 mi), shallow
Epicenter: 53.609° N, 167.156° 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: 15

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast50 kmSW

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 28 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021s774y5 (also filed as av91017373). Read Sun, Sep 27, 2026, 10:34 AM UTC.