Overview
- The Servicio Sismológico Nacional recorded a magnitude 4.5 earthquake off Ciudad Hidalgo, Chiapas, early Tuesday with a shallow focal depth that produced noticeable but limited shaking.
- Multiple other small quakes were logged the same day across southern and central Mexico, including events near Oaxaca, Colima, Veracruz and Jalisco.
- The SSN maintains real-time monitoring and sometimes revises initial readings as it analyzes waveforms; one Colima event was first posted as M5.1 and later adjusted to M4.5.
- State and municipal Protection Civil offices carried out inspections and reported no structural damage or injuries after the recent shocks.
- Seismologists attribute the high local activity to subduction of the Cocos plate beneath North America and note the aftershock sequence from the July 17 M7.4 has produced thousands of replicas, so residents are urged to follow official channels and preparedness guidance.