Alaska earthquakes

M1.9 earthquake 78 km S of Unalaska, Alaska

A magnitude 1.9 earthquake struck 78 km S of Unalaska, Alaska on Tue, Jun 27, 2017, 4:01 PM AKDT (00:01 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M3.6 102 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: 1.9 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Jun 27, 2017, 4:01 PM AKDT
UTC: 2017-06-28 00:01:24 UTC
Depth: 25.5 km (15.8 mi), shallow
Epicenter: 53.180° N, 166.750° 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: 17

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast78 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 121 in the 60 days after this one and 44 in the 30 days before it.

After

The first 60 of 121.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0178817dys (also filed as ak16239924). Read Fri, Oct 2, 2026, 12:54 PM UTC.