Alaska earthquakes

M2.1 earthquake 58 km W of Tyonek, Alaska

A magnitude 2.1 earthquake struck 58 km W of Tyonek, Alaska on Sun, Aug 1, 2021, 4:55 PM AKDT (00:55 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.3 24 km WNW of Clam Gulch, Alaska. This one was a foreshock.

Nikiski 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
2.1 (ml), micro
Local time
UTC
2021-08-02 00:55:33 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
61.155° N, 152.207° 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
51

Nearest places

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

Nearby

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

After

The first 60 of 194.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219txc4mu (also filed as av91037113). Read Thu, Sep 24, 2026, 12:52 PM UTC.