Alaska earthquakes

M1.9 earthquake 148 km S of Unalaska, Alaska

A magnitude 1.9 earthquake struck 148 km S of Unalaska, Alaska on Sat, May 27, 2017, 6:20 PM AKDT (02:20 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.2 72 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: 1.9 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sat, May 27, 2017, 6:20 PM AKDT
UTC: 2017-05-28 02:20:19 UTC
Depth: 5.0 km (3.1 mi), shallow
Epicenter: 52.540° N, 166.649° 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: 11

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast149 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 31 in the 30 days before it.

After

The first 60 of 61.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0176ssuk3p (also filed as ak16132965). Read Fri, Oct 2, 2026, 11:43 AM UTC.