Magnitude 7.4 Earthquake Off Chiapas Shakes Mexico and Central America, Triggers Tsunami Alert

Editorial StaffJuly 17, 2026 at 12:00 AM

A powerful magnitude 7.4 earthquake struck off the Pacific coast of southern Mexico on the morning of Friday, July 17, 2026, briefly activating a regional tsunami alert and rattling communities from the Chiapas coast into neighboring Guatemala and El Salvador. The Chiapas earthquake hit at 8:48 a.m. local time with an epicenter roughly 135 kilometers southwest of Ciudad Hidalgo — about 48 kilometers southwest of the coastal town of Aquiles Serdán — at a depth of 10 kilometers.

The Pacific Tsunami Warning Center issued a tsunami threat for coastal areas of Mexico, Guatemala, El Salvador and Honduras, with small wave activity recorded before the warning was lifted within hours. USGS PAGER estimates that roughly 67,000 people experienced very strong shaking, 627,000 strong shaking, 3.3 million moderate shaking and 22 million light shaking — an unusually wide felt area that reached as far as Mexico City, Guatemala City and San Salvador. Mexico's National Seismological Service recorded 134 aftershocks by midday, the largest at magnitude 6.5, and warned residents that additional strong aftershocks remained likely.

Damage was concentrated in Tapachula, the largest Mexican city near the epicenter, where walls and roofs collapsed, cracks opened in buildings, gas leaks were reported, and residents evacuated homes, hospitals and schools into the streets. At least four people were injured, including one who was hurt after jumping from a third-story window during the shaking and another struck by a falling door. Damaged school buildings suspended classes across several municipalities, and civil-protection crews began structural inspections in Tuxtla Gutiérrez, Tapachula and Huixtla. Authorities in Guatemala and El Salvador reported no fatalities but activated their emergency operations centers.

Mexican President Claudia Sheinbaum activated the National Coordination of Civil Protection and dispatched federal assessment teams to Chiapas. The Mexican Red Cross mobilized volunteers, ambulances and shelter teams across the coastal Soconusco region, while Direct Relief — which maintains staff and pre-positioned medical inventory in Mexico — announced that it is monitoring conditions and preparing to move emergency medical supplies to affected clinics if needed. Local governments in the hardest-hit municipalities opened temporary shelters and began damage assessments to determine longer-term rebuilding needs.

To support families affected by the earthquake, visit the Chiapas earthquake disaster page or explore the full Relief Directory to find other ways to help.