M2.2 earthquake 111 km SW of Adak, Alaska

A magnitude 2.2 earthquake struck 111 km SW of Adak, Alaska on Wed, Jan 18, 2017, 4:38 PM HAST (02:38 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M4.6 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 38 in the 30 days before it.

The first 60 of at least 200.

From the USGS Earthquake Hazards Program and its partner networks, event ak017vgmm4e (also filed as ak15157154). Read Sat, Oct 3, 2026, 2:02 PM UTC.