Alaska earthquakes

M3.0 earthquake 264 km W of Adak, Alaska

A magnitude 3.0 earthquake struck 264 km W of Adak, Alaska on Tue, Nov 24, 2020, 3:25 AM GMT+12 (15:25 UTC), 113 km (70 mi) below the surface.

A larger quake followed: M6.1 230 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 3.0 (ml), minor
Local time: Tue, Nov 24, 2020, 3:25 AM GMT+12
UTC: 2020-11-23 15:25:21 UTC
Depth: 113.0 km (70.2 mi), intermediate-depth
Epicenter: 51.723° N, 179.538° E
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 22.0 km horizontally, 15.2 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 344°, poorly surrounded by stations
Stations used: 18

Nearby

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 31 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000crpl (also filed as ak020f2pcrub). Read Sun, Sep 27, 2026, 1:54 AM UTC.