Alaska earthquakes

M2.8 earthquake 53 km SW of Nelson Lagoon, Alaska

A magnitude 2.8 earthquake struck 53 km SW of Nelson Lagoon, Alaska on Sun, Apr 25, 2021, 10:17 AM AKDT (18:17 UTC), 168 km (104 mi) below the surface.

A larger quake followed: M3.0 49 km NE of King Cove, Alaska. This one was a foreshock.

King Cove 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: 2.8 (ml), micro
Local time: Sun, Apr 25, 2021, 10:17 AM AKDT
UTC: 2021-04-25 18:17:27 UTC
Depth: 167.9 km (104.3 mi), intermediate-depth
Epicenter: 55.613° N, 161.710° 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 5.1 km horizontally, 5.2 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 116°
Stations used: 34

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast72 kmNNE

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 17 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 us6000e4qa (also filed as ak0215ahmf3n). Read Wed, Sep 23, 2026, 2:28 PM UTC.