Magnitude 4.3 earthquake strikes 81 km WNW of San Antonio de los Cobres, Argentina

A magnitude 4.3 earthquake struck 81 kilometers west-northwest of San Antonio de los Cobres, Argentina, on July 19, 2026, at 23:08:29.371 UTC. The United States Geological Survey (USGS) reported the seismic event originated at a depth of 206.043 kilometers, with its epicenter located at coordinates -24.0529 latitude and -67.1042 longitude.

This earthquake was measured by the USGS, which monitors and reports on seismic activity worldwide. Their instruments continuously record ground motion, and these recordings are then analyzed to determine key parameters such as magnitude, location, and depth. The magnitude value, derived from seismic wave amplitudes, indicates the energy released by the earthquake.