Alaska earthquakes

M2.4 earthquake 80 km ENE of Chignik, Alaska

A magnitude 2.4 earthquake struck 80 km ENE of Chignik, Alaska on Wed, Aug 18, 2021, 11:51 PM AKDT (07:51 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.8 93 km ESE of Ugashik, Alaska. This one was a foreshock.

Naknek forecastMore in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-08-19 07:51:23 UTC
Depth
9.4 km (5.8 mi), shallow
Epicenter
56.647° N, 157.263° 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
55

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 164 in the 60 days after this one and 35 in the 30 days before it.

After

The first 60 of 164.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021am5m6ln (also filed as us6000f896). Read Tue, Sep 22, 2026, 8:40 PM UTC.