Overview
- The sequence of offshore quakes continued Thursday with a confirmed magnitude 4.5 at 06:04 on July 23rd, located about 147 km southwest of Ciudad Hidalgo at a depth of 6 km, according to the Servicio Sismológico Nacional.
- Officials report no significant structural damage or injuries so far and say state and federal Protección Civil teams are carrying out precautionary inspections and continued monitoring.
- Multiple earlier events between July 21 and 22 included magnitudes 4.2–4.5 at shallow depths off Chiapas, and the pattern was tracked in near real time by the SSN across successive bulletins.
- Separately, Peru’s IGP recorded a magnitude 4.1 quake on July 22 near Ricardo Palma (Huarochirí) at about 101 km depth with intensity III felt locally and no reported damage.
- The region sits above the Cocos-plate subduction zone, so moderate, shallow offshore quakes are common; authorities urge people to follow official SSN and Protección Civil channels, check emergency kits and watch for possible aftershocks.