A magnitude 5.0 earthquake struck the Rat Islands in the Aleutian Islands, Alaska, at 07:48:12 UTC on 27 September 2026, according to a preliminary report from the US Geological Survey.

The quake was centered at 50.908N, 179.335E, at a depth of 34 kilometers. The epicenter was 300.4 kilometers (186.3 miles) west-southwest of Adak, Alaska, and roughly 1,358 kilometers (842 miles) east-southeast of Klyuchi, Russia.

The event, recorded under ID aka2026tdlmve, was reviewed by a seismologist. The report was issued by the Alaska Earthquake Center at the Geophysical Institute, University of Alaska Fairbanks. No damage or injuries were reported.