Overview
- The strongest recorded event was a magnitude 4.0 located about 141 kilometers southwest of Huixtla at 04:15:27 on Monday, September 7, 2026, with a reported focal depth of 10 km.
- The SSN logged a cluster of shallow, low‑magnitude quakes between September 6 and 7, including several 3.7–3.9 events near Mapastepec and Ciudad Hidalgo.
- Protección Civil teams carried out routine inspections after the tremors and reported no injuries, no structural damage, and no disruptions to public services.
- National alert systems such as SASMEX did not trigger because the events fell below established magnitude‑distance thresholds for mass alerts.
- Authorities and scientists stress that SSN parameters are preliminary and that continued monitoring is under way for possible aftershocks while the public is urged to follow official channels and preparedness guidance.