Alaska earthquakes

M1.9 earthquake 84 km ESE of King Salmon, Alaska

A magnitude 1.9 earthquake struck 84 km ESE of King Salmon, Alaska on Tue, Apr 20, 2021, 4:56 AM AKDT (12:56 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.7 85 km ESE of Egegik, Alaska. This one was a foreshock.

Naknek 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: 1.9 (ml), micro
Local time: Tue, Apr 20, 2021, 4:56 AM AKDT
UTC: 2021-04-20 12:56:56 UTC
Depth: 1.0 km (0.6 mi), shallow
Epicenter: 58.277° N, 155.448° 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.

Stations used: 19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 57 in the 60 days after this one and 48 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 ak021524li65 (also filed as av91024628). Read Wed, Sep 30, 2026, 10:23 AM UTC.