Alaska earthquakes

M2.6 earthquake 66 km SSW of Unalaska, Alaska

A magnitude 2.6 earthquake struck 66 km SSW of Unalaska, Alaska on Mon, Jul 16, 2018, 5:52 PM AKDT (01:52 UTC), 73 km (46 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.

Open the live map with earthquakes

The earthquake

Magnitude: 2.6 (ml), micro
Local time: Mon, Jul 16, 2018, 5:52 PM AKDT
UTC: 2018-07-17 01:52:26 UTC
Depth: 73.3 km (45.5 mi), intermediate-depth
Epicenter: 53.377° N, 167.090° 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.

Location uncertainty: About 11.9 km horizontally, 23.1 km in depth
Depth from: From location
Station coverage gap: 197°, poorly surrounded by stations
Stations used: 29

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast66 kmSW

Nearby

Within 100 km, magnitude 1.5 and up: 96 in the 60 days after this one and 46 in the 30 days before it.

After

The first 60 of 96.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000ga0l (also filed as ak19881536, ak01893hbco6). Read Wed, Sep 30, 2026, 9:27 PM UTC.