Two strong earthquakes struck deep below ground in remote areas of South America on Saturday. There were no immediate reports of damage or injuries.

A magnitude-6.1 temblor hit Brazil in the western Amazon state of Acre at about 9:30 a.m., 105 miles southeast of Cruzeiro do Sul, according to the Web site of the U.S. Geological Survey.

Fire Sgt. Elio Murilo in Cruzeiro do Sul, near the Peruvian border, said he was not aware that the tremor had been felt, and that there were no reports of victims or damage.

Meanwhile a 6.2 quake struck the far-northern Argentine province of Jujuy near the Bolivian border at about 12:30 p.m., the USGS said.

The Civil Defense department in the capital of San Salvador de Jujuy reported that the quake was likely not felt in the region, given its recorded depth of nearly 150 miles.

The Brazil quake occurred some 390 miles below ground, the USGS said.