Alaska earthquakes

M2.8 earthquake 199 km SE of Chignik, Alaska

A magnitude 2.8 earthquake struck 199 km SE of Chignik, Alaska on Thu, Jul 29, 2021, 7:22 PM AKDT (03:22 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.6 181 km SE of Chignik, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Thu, Jul 29, 2021, 7:22 PM AKDT
UTC: 2021-07-30 03:22:59 UTC
Depth: 33.4 km (20.8 mi), shallow
Epicenter: 55.327° N, 155.732° 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: 24

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 149 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219p0bdbu (also filed as us6000f54i). Read Fri, Sep 25, 2026, 10:14 PM UTC.