Alaska earthquakes

M2.9 earthquake 276 km W of Adak, Alaska

A magnitude 2.9 earthquake struck 276 km W of Adak, Alaska on Sun, Nov 15, 2020, 11:22 PM GMT+12 (11:22 UTC), 84 km (52 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: 2.9 (ml), micro
Local time: Sun, Nov 15, 2020, 11:22 PM GMT+12
UTC: 2020-11-15 11:22:31 UTC
Depth: 84.4 km (52.4 mi), intermediate-depth
Epicenter: 51.628° N, 179.387° 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 18.9 km horizontally, 23.4 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 345°, poorly surrounded by stations
Stations used: 24

Nearby

Within 100 km, magnitude 1.5 and up: 50 in the 60 days after this one and 39 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 us7000cm7b (also filed as ak020epenlzp). Read Mon, Sep 28, 2026, 7:54 PM UTC.