M2.0 earthquake 88 km W of Adak, Alaska

A magnitude 2.0 earthquake struck 88 km W of Adak, Alaska on Mon, Jan 23, 2017, 1:01 PM HAST (23:01 UTC), 12 km (7 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 199 in the 60 days after this one and 51 in the 30 days before it.

The first 60 of at least 199.

From the USGS Earthquake Hazards Program and its partner networks, event ak01712f27qf (also filed as ak15169619). Read Sat, Oct 3, 2026, 8:31 AM UTC.