Alaska earthquakes

M1.9 earthquake 67 km S of Unalaska, Alaska

A magnitude 1.9 earthquake struck 67 km S of Unalaska, Alaska on Wed, Jul 11, 2018, 5:34 AM AKDT (13:34 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M4.4 136 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), micro
Local time: Wed, Jul 11, 2018, 5:34 AM AKDT
UTC: 2018-07-11 13:34:04 UTC
Depth: 25.5 km (15.8 mi), shallow
Epicenter: 53.273° N, 166.449° 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: 21

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast67 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 107 in the 60 days after this one and 54 in the 30 days before it.

After

The first 60 of 107.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0188tr4kd4 (also filed as ak19856580). Read Wed, Sep 30, 2026, 6:29 PM UTC.