Argentina, Chile: Magnitude-5.3 earthquake occurs in Mendoza Province Sept. 29

Event

A magnitude-5.3 earthquake occurred in northern Mendoza Province, Argentina at around 04:53 Sept. 29. The epicenter was about 32 km (20 miles) east-southeast of San Martin, Argentina. The tremor occurred at a depth of about 30 km (19 miles), and moderate shaking was probably felt throughout northern Mendoza Province, Argentina while moderate to light shaking was likely felt over San Luis, San Juan, and far southern La Rioja provinces in Argentina, as well as Metropolitan, eastern O'Higgins, and Valparaiso regions in Chile. There have been no initial reports of damage or casualties as a result of the earthquake; 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.

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.

Advice

Plan accordingly for aftershocks. Consider vacating multistory buildings if operating in affected areas until authorities confirm their structural integrity. Allow additional time for air and road travel, as aftershocks may prompt brief disruptions. Seek updated information on road conditions before driving in hilly areas in the affected region due to potential landslides.