Alaska earthquakes

M2.7 earthquake 265 km W of Adak, Alaska

A magnitude 2.7 earthquake struck 265 km W of Adak, Alaska on Thu, Aug 18, 2022, 2:39 AM GMT+12 (14:39 UTC), 155 km (97 mi) below the surface.

A larger quake followed: M5.0 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.7 (ml), micro
Local time: Thu, Aug 18, 2022, 2:39 AM GMT+12
UTC: 2022-08-17 14:39:42 UTC
Depth: 155.3 km (96.5 mi), intermediate-depth
Epicenter: 51.977° N, 179.506° 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 8.0 km horizontally, 8.0 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 136°
Stations used: 19

Nearby

Within 100 km, magnitude 1.5 and up: 115 in the 60 days after this one and 99 in the 30 days before it.

After

The first 60 of 115.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000inu4 (also filed as ak022aiymzv6). Read Wed, Sep 30, 2026, 12:35 PM UTC.