Alaska earthquakes

M2.7 earthquake 83 km SSW of Unalaska, Alaska

A magnitude 2.7 earthquake struck 83 km SSW of Unalaska, Alaska on Sat, Sep 7, 2019, 10:45 PM AKDT (06:45 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.3 139 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: 2.7 (ml), micro
Local time: Sat, Sep 7, 2019, 10:45 PM AKDT
UTC: 2019-09-08 06:45:13 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 53.151° N, 166.891° 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 2.7 km horizontally, 2.0 km in depth
Depth from: Operator assigned
Station coverage gap: 229°, poorly surrounded by stations
Stations used: 34

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast84 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 33 in the 30 days before it.

After

The first 60 of 132.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005rsb (also filed as ak019bj7qdsz). Read Wed, Sep 30, 2026, 11:35 AM UTC.