Alaska earthquakes

M2.2 earthquake 240 km W of Adak, Alaska

A magnitude 2.2 earthquake struck 240 km W of Adak, Alaska on Sat, Jul 22, 2017, 2:46 AM HADT (11:46 UTC), 183 km (114 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: 2.2 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sat, Jul 22, 2017, 2:46 AM HADT
UTC: 2017-07-22 11:46:18 UTC
Depth: 182.7 km (113.5 mi), intermediate-depth
Epicenter: 51.963° N, 179.878° 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.

Stations used: 18

Nearby

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 48 in the 30 days before it.

After

The first 60 of 88.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0179bwx489 (also filed as ak16362218). Read Fri, Oct 2, 2026, 10:35 PM UTC.