Alaska earthquakes

M1.6 earthquake Alaska Peninsula

A magnitude 1.6 earthquake struck in the Alaska Peninsula on Thu, Sep 30, 2021, 4:07 PM AKDT (00:07 UTC), 1 km (0 mi) below the surface.

A larger quake followed: M1.7 32 km N of Akhiok, Alaska. This one was a foreshock.

Womens Bay 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: 1.6 (ml), micro
Local time: Thu, Sep 30, 2021, 4:07 PM AKDT
UTC: 2021-10-01 00:07:52 UTC
Depth: 0.6 km (0.4 mi), shallow
Epicenter: 58.127° N, 154.458° 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: 10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 40 in the 30 days before it.

After

The first 60 of 108.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cl5aphw (also filed as av91042013). Read Wed, Sep 23, 2026, 8:27 AM UTC.