Alaska earthquakes

M2.7 earthquake 4 km ENE of Big Lake, Alaska

A magnitude 2.7 earthquake struck 4 km ENE of Big Lake, Alaska on Sat, Oct 9, 2021, 5:12 AM AKDT (13:12 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M3.6 24 km SSW of Petersville, Alaska. This one was a foreshock.

Big Lake 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: Sat, Oct 9, 2021, 5:12 AM AKDT
UTC: 2021-10-09 13:12:07 UTC
Depth: 33.6 km (20.9 mi), shallow
Epicenter: 61.541° N, 149.883° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 114

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 199 in the 60 days after this one and 111 in the 30 days before it.

After

The first 60 of 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cyld38e (also filed as av91390151, us6000ftas). Read Mon, Sep 28, 2026, 1:24 AM UTC.