Mexico: Magnitude-5.3 offshore earthquake occurs off the southwest coast of Chiapas State at around 00:43 Sept. 25

A magnitude-5.3 earthquake occurred in the North Pacific Ocean at around 00:43 CST Sept. 25. The epicenter was about 84 km (52 miles) west-southwest of Puerto Madero, Chiapas State. The tremor occurred at a depth of about 10 km (6 miles), and light shaking was probably felt throughout parts of southern Chiapas State and southwestern Guatemala. There have been no initial reports of damage or casualties; however, significant damage is unlikely. It could take several hours until authorities can conduct comprehensive damage assessments, especially in remote areas. Light aftershocks are likely over the coming days. The event has not prompted any tsunami advisories.

Officials may temporarily shut down transportation infrastructure in the tremor zone to check for damage. Minor disruptions could occur during shutdowns, but service will likely resume quickly if no damage is found. Utility outages are possible, particularly near the earthquake's epicenter.