By the CNN Wire Staff
updated 4:13 PM EDT, Mon April 2, 2012


Mexico City (CNN) -- A powerful earthquake with a preliminary magnitude of 6.3 struck southern Mexico on Monday, the U.S. Geological Survey said.

The quake's epicenter was about 17 miles (27 kilometers) from Ometepec, Guerrero. It was about 7.6 miles (12 kilometers) deep, the USGS said.

There were no immediate reports of damage or injuries.

Officials described the quake as an aftershock of the 7.4-magnitude temblor which struck in the same area on March 20, damaging hundreds of homes.

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