Magnitude 4.5 earthquake strikes 39 km WSW of Brisas Barra de Suchiate, Mexico

A magnitude 4.5 earthquake struck off the coast of Mexico on July 18, 2026, at 23:38:01.171 UTC. The United States Geological Survey (USGS) reported the seismic event occurred at a depth of 35 kilometers. Its epicenter was located at coordinates 14.3539 latitude and -92.5399 longitude.

The earthquake's location was approximately 39 kilometers west-southwest of Brisas Barra de Suchiate, Mexico. The USGS is the primary scientific agency responsible for recording and disseminating data on earthquakes globally, utilizing a network of seismograph stations to pinpoint the time, location, and magnitude of these geological occurrences.

Magnitude, a key measurement provided by the USGS, quantifies the energy released at the earthquake's source, often calculated using seismic wave amplitudes recorded on seismographs. The depth reported indicates how far beneath the Earth's surface the rupture occurred.