Adak, Alaska — A magnitude 4.6 earthquake struck in the ocean west-northwest of Adak, Alaska, on Sunday afternoon, according to the U.S. Geological Survey.

What happened:

The quake hit at 12:49 p.m. Central time, centered about 95 miles west-northwest of Adak in the Aleutian Islands. It struck deep underground, roughly 95 miles below the surface. Deep quakes like this one spread their energy over a wide area but usually shake the surface less than a shallow quake of the same size.

Impacts:

No felt reports had come in at the time of this report, and no damage was reported. The Geological Survey flagged no tsunami threat from this quake. Adak is a remote island community, and the epicenter sat well offshore in open ocean.

What to do:

- If you feel shaking, drop to the ground, take cover under a sturdy table, and hold on until it stops.

- Stay away from windows, heavy furniture, and anything that could fall.

- After the shaking stops, check for hazards like broken glass, gas smells, or damaged wiring before moving around.

- Be ready for aftershocks, which can follow a quake minutes, hours, or days later.

Source: U.S. Geological Survey (USGS), October 25, 2026.