Alaska earthquakes

M2.7 earthquake 138 km WNW of Adak, Alaska

A magnitude 2.7 earthquake struck 138 km WNW of Adak, Alaska on Tue, Aug 23, 2022, 2:41 PM HADT (23:41 UTC), 167 km (104 mi) below the surface.

A larger quake followed: M4.8 145 km WSW of Adak, Alaska. This one was a foreshock.

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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: Tue, Aug 23, 2022, 2:41 PM HADT
UTC: 2022-08-23 23:41:58 UTC
Depth: 167.2 km (103.9 mi), intermediate-depth
Epicenter: 52.177° N, 178.591° 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.

Location uncertainty: About 8.1 km horizontally, 8.0 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 188°, poorly surrounded by stations
Stations used: 15

Nearby

Within 100 km, magnitude 1.5 and up: 93 in the 60 days after this one and 44 in the 30 days before it.

After

The first 60 of 93.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000iqts (also filed as ak022at18fud). Read Wed, Sep 30, 2026, 2:10 AM UTC.