Alaska earthquakes

M2.5 earthquake 67 km S of Unalaska, Alaska

A magnitude 2.5 earthquake struck 67 km S of Unalaska, Alaska on Sat, Jul 14, 2018, 8:10 PM AKDT (04:10 UTC), 86 km (53 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: 2.5 (ml), micro
Local time: Sat, Jul 14, 2018, 8:10 PM AKDT
UTC: 2018-07-15 04:10:19 UTC
Depth: 85.5 km (53.2 mi), intermediate-depth
Epicenter: 53.269° N, 166.616° 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 8.1 km horizontally, 24.7 km in depth
Depth from: From location
Station coverage gap: 204°, poorly surrounded by stations
Stations used: 40

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: 109 in the 60 days after this one and 45 in the 30 days before it.

After

The first 60 of 109.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000g5s0 (also filed as ak19869678, ak018907rxvq). Read Wed, Sep 30, 2026, 10:18 PM UTC.