Alaska earthquakes

M2.6 earthquake 38 km NNW of Mosquito Lake, Alaska

A magnitude 2.6 earthquake struck 38 km NNW of Mosquito Lake, Alaska on Wed, Aug 18, 2021, 11:29 PM AKDT (07:29 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.1 31 km SSW of Covenant Life, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude: 2.6 (ml), micro
Local time: Wed, Aug 18, 2021, 11:29 PM AKDT
UTC: 2021-08-19 07:29:51 UTC
Depth: 8.5 km (5.3 mi), shallow
Epicenter: 59.815° N, 136.461° 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 1.8 km horizontally, 7.0 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 85°
Stations used: 53

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 14 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 us6000f890 (also filed as ak021am5hizu). Read Mon, Sep 28, 2026, 9:05 PM UTC.