A magnitude 7.4 earthquake occurred 48 kilometers southwest of Aquiles Serdán, Chiapas, Mexico, at 17:00 UTC on July 17, 2026, with a shallow depth of 15 kilometers. The event triggered a tsunami warning for coastal regions in Mexico and Guatemala, prompting evacuations in Tapachula and Guatemala City. Authorities confirmed at least two injuries—one from a fall during evacuation and another from falling debris—and reported minor structural damage including cracked walls, detached ceiling panels, and gas leaks. Tsunami waves measuring 0.3 meters above normal tide levels were recorded in Puerto Madero and Chiapas. Emergency response protocols remain active, with field teams assessing structural impacts and coastal conditions. Aftershocks in the magnitude 5–6 range continue to pose a risk of additional damage.