Alaska earthquakes

M2.7 earthquake 135 km ESE of Chignik, Alaska

A magnitude 2.7 earthquake struck 135 km ESE of Chignik, Alaska on Mon, Aug 16, 2021, 1:31 PM AKDT (21:31 UTC), 49 km (31 mi) below the surface.

A larger quake followed: M3.3 98 km WSW of Akhiok, Alaska. This one was a foreshock.

Sand Point 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: Mon, Aug 16, 2021, 1:31 PM AKDT
UTC: 2021-08-16 21:31:50 UTC
Depth: 49.4 km (30.7 mi), shallow
Epicenter: 55.785° N, 156.430° 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: 46

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast261 kmENE

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and 5 in the 30 days before it.

After

The first 60 of 194.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ahf7zbg (also filed as us6000f78s). Read Tue, Sep 22, 2026, 6:19 PM UTC.