Alaska earthquakes

M1.6 earthquake 19 km SSE of Unalaska, Alaska

A magnitude 1.6 earthquake struck 19 km SSE of Unalaska, Alaska on Thu, Jun 28, 2018, 2:12 AM AKDT (10:12 UTC), 97 km (60 mi) below the surface.

A larger quake followed: M4.1 79 km S 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: 1.6 (ml), micro
Local time: Thu, Jun 28, 2018, 2:12 AM AKDT
UTC: 2018-06-28 10:12:07 UTC
Depth: 96.9 km (60.2 mi), intermediate-depth
Epicenter: 53.702° N, 166.465° 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: 10

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast20 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 101 in the 60 days after this one and 67 in the 30 days before it.

After

The first 60 of 101.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01888781ma (also filed as ak19835606). Read Wed, Sep 30, 2026, 9:58 PM UTC.