Alaska earthquakes

M1.9 earthquake 90 km WSW of Unalaska, Alaska

A magnitude 1.9 earthquake struck 90 km WSW of Unalaska, Alaska on Thu, Apr 6, 2017, 6:42 AM AKDT (14:42 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M3.8 41 km ESE 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: 1.9 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Thu, Apr 6, 2017, 6:42 AM AKDT
UTC: 2017-04-06 14:42:57 UTC
Depth: 25.7 km (16.0 mi), shallow
Epicenter: 53.576° N, 167.804° 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: 16

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast90 kmWSW

Nearby

Within 100 km, magnitude 1.5 and up: 63 in the 60 days after this one and 28 in the 30 days before it.

After

The first 60 of 63.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0174f06idw (also filed as ak15719544). Read Fri, Oct 2, 2026, 10:32 PM UTC.