Alaska earthquakes

M2.6 earthquake 87 km SW of Unalaska, Alaska

A magnitude 2.6 earthquake struck 87 km SW of Unalaska, Alaska on Wed, Nov 18, 2020, 10:19 PM AKST (07:19 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M6.4 46 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: 2.6 (ml), micro
Local time: Wed, Nov 18, 2020, 10:19 PM AKST
UTC: 2020-11-19 07:19:58 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 53.274° N, 167.375° 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 4.4 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.13
Depth from: Operator assigned
Station coverage gap: 205°, poorly surrounded by stations
Stations used: 25

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast87 kmSW

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and 35 in the 30 days before it.

After

The first 60 of 194.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000cms1 (also filed as ak020evyeocw). Read Sat, Sep 26, 2026, 1:53 AM UTC.