A large but very deep 6.7 magnitude earthquake hit western Brazil today, the US Geological Survey said.

The earthquake struck at 12:45 am (5:45 GMT) at a depth of 375 miles (604 kilometers). It occurred some 81 miles southwest of the town of Tarauaca and 436 miles northeast of Lima, Peru.

The USGS had initially reported the earthquake's magnitude at 6.4.

No immediate reports of damage or casualties were reported after the temblor.

Deep South American earthquakes primarily occur in two zones: beneath the Peru-Brazil border, where today's earthquake hit, and also in an area running from central Bolivia to central Argentina, according to USGS.

Source: Agence France-Presse