Alaska earthquakes

M2.0 earthquake 119 km S of Unalaska, Alaska

A magnitude 2.0 earthquake struck 119 km S of Unalaska, Alaska on Sun, Jul 31, 2016, 11:00 PM AKDT (07:00 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.6 120 km E 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: 2.0 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sun, Jul 31, 2016, 11:00 PM AKDT
UTC: 2016-08-01 07:00:04 UTC
Depth: 5.2 km (3.2 mi), shallow
Epicenter: 52.805° N, 166.745° 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: 13

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast120 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 97 in the 30 days before it.

After

The first 60 of 98.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0169u16b89 (also filed as ak13822437). Read Sun, Oct 4, 2026, 12:08 AM UTC.