Magnitude 4.6 earthquake strikes 103 km S of San Pedro de Atacama, Chile

A magnitude 4.6 earthquake struck 103 km south of San Pedro de Atacama, Chile, on Wednesday, July 22, 2026, at 11:37:17 GMT. The seismic event occurred at a depth of 126.094 km, with coordinates recorded at -23.8369, -68.3218.

The U.S. Geological Survey (USGS) detected and measured the earthquake. The USGS is a scientific agency of the United States government that studies the landscape of the U.S., its natural resources, and the natural hazards that threaten it. It measures earthquake magnitude using seismographs, which record ground motion.