A magnitude-5.8 earthquake rocked southern Mexico early Sunday, but no injuries or serious damage have been reported, the National Seismology Service said.

The temblor's epicenter was located 30 kilometers (18.6 miles) southeast of Huitzuco, a city in the southern state of Guerrero.

The earthquake occurred around 12:19 a.m., with the magnitude initially revised upward to 5.9 and 6.0 but later set at 5.8, the service said.

No damage was reported immediately after the earthquake and no damage reports were received in the 30 minutes following the temblor, Government Secretary Miguel Angel Osorio Chong said in a Twitter posting.

A few power surges and outages were reported in Mexico City, the capital's mayor, Miguel Angel Mancera, said.

People in some Mexico City districts, however, went into the streets in a panic when the ground began to move.

Mexico, one of the countries with the highest levels of seismic activity in the world, sits on the North American tectonic plate and is surrounded by three other plates in the Pacific: the Rivera microplate, at the mouth of the Gulf of California; the Pacific plate; and the Cocos plate.

The Cocos tectonic plate stretches from Colima state south and has the potential to cause the most damage since it affects Mexico City, which has a population of 20 million and was constructed over what was once Lake Texcoco.

The magnitude-8.1 earthquake that hit Mexico City on Sept. 19, 1985, was the most destructive to ever hit Mexico, killing some 10,000 people, injuring more than 40,000 others and leaving 80,000 people homeless.

The most recent powerful quake to hit Mexico was a magnitude-7.6 temblor that rocked Colima on Jan. 21, 2003. EFE