Magnitude 5 earthquake strikes 91 km SE of Atka, Alaska

A magnitude 5 earthquake struck 91 km southeast of Atka, Alaska, on Saturday, July 25, 2026, at 21:03:17 GMT. The seismic event originated at a depth of 40.779 kilometers, centered at coordinates 51.6063 latitude and -173.2803 longitude.

The U.S. Geological Survey (USGS) monitors and reports on earthquakes globally, providing data on their magnitude, location, depth, and time of occurrence. Magnitude, a measure of an earthquake's size, is determined from seismograph readings and is a standard scientific reporting metric.