Alaska earthquakes

M2.7 earthquake 31 km SE of King Cove, Alaska

A magnitude 2.7 earthquake struck 31 km SE of King Cove, Alaska on Tue, Mar 23, 2021, 3:28 AM AKDT (11:28 UTC), 89 km (55 mi) below the surface.

A larger quake followed: M3.2 95 km SSE 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: 2.7 (ml), micro
Local time: Tue, Mar 23, 2021, 3:28 AM AKDT
UTC: 2021-03-23 11:28:04 UTC
Depth: 88.6 km (55.1 mi), intermediate-depth
Epicenter: 54.863° N, 161.975° 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 6.4 km horizontally, 5.9 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 160°
Stations used: 30

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast31 kmSE

Nearby

Within 100 km, magnitude 1.5 and up: 112 in the 60 days after this one and 87 in the 30 days before it.

After

The first 60 of 112.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000e288 (also filed as ak0213rss8fg). Read Thu, Sep 24, 2026, 3:09 AM UTC.