Alaska earthquakes

M3.1 earthquake 345 km W of Adak, Alaska

A magnitude 3.1 earthquake struck 345 km W of Adak, Alaska on Sat, Oct 8, 2022, 7:03 PM GMT+12 (07:03 UTC), 125 km (77 mi) below the surface.

A larger quake followed: M4.5 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Sat, Oct 8, 2022, 7:03 PM GMT+12
UTC: 2022-10-08 07:03:56 UTC
Depth: 124.6 km (77.4 mi), intermediate-depth
Epicenter: 51.931° N, 178.360° E
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.

Location uncertainty: About 7.5 km horizontally, 5.4 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 155°
Stations used: 20

Nearby

Within 100 km, magnitude 1.5 and up: 54 in the 60 days after this one and 38 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000illi (also filed as ak022cwu7brc). Read Wed, Sep 30, 2026, 1:11 AM UTC.