A powerful 6.5-magnitude earthquake struck southern and central Mexico on January 2, 2026, sending shockwaves through cities including Mexico City and Acapulco. Dramatic footage shows buildings swaying violently as residents rushed into the streets in panic. The quake was felt hundreds of miles from the epicenter near San Marcos in Guerrero state, prompting evacuations and the interruption of Mexico’s presidential press briefing as alarms blared. Authorities reported structural damage and at lea

An Illustrated Guide to Reading a Seismogram

USGS’ new interactive map