Overview
- The Servicio Sismológico Nacional confirmed a magnitude 5.0 quake at 01:43:19 local time on Wednesday located about 102 km southwest of Mapastepec at a depth of 10 km.
- The M5.0 follows a cluster of smaller quakes recorded between October 5 and 7, including multiple M3.8–3.9 events off the Chiapas coast and a M3.7 near Cihuatlán, Jalisco.
- Federal and state protection agencies reported the M5.0 was lightly felt in parts of Chiapas and said there are no confirmed injuries or structural damage after preliminary checks.
- Scientists note the activity is consistent with subduction of the Cocos plate beneath southern Mexico and regional universities reported far more small quakes recorded in the first half of 2026 than in 2025.
- Authorities urge people to monitor the Servicio Sismológico Nacional and Protección Civil channels for verified reports, to expect possible aftershocks, and to follow basic preparedness steps such as checking evacuation routes and emergency kits.