Alaska earthquakes

M2.8 earthquake 32 km ENE of Adak, Alaska

A magnitude 2.8 earthquake struck 32 km ENE of Adak, Alaska on Tue, Nov 24, 2020, 3:52 AM HAST (13:52 UTC), 137 km (85 mi) below the surface.

A larger quake followed: M4.6 47 km WSW of Atka, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Tue, Nov 24, 2020, 3:52 AM HAST
UTC: 2020-11-24 13:52:08 UTC
Depth: 137.0 km (85.1 mi), intermediate-depth
Epicenter: 51.948° N, 176.175° 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 10.6 km horizontally, 5.4 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 162°
Stations used: 20

Nearby

Within 100 km, magnitude 1.5 and up: 126 in the 60 days after this one and 53 in the 30 days before it.

After

The first 60 of 126.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000cnjx (also filed as ak020f4buz7r). Read Tue, Sep 29, 2026, 8:36 PM UTC.