No reports of damage after magnitude 6.4 earthquake strikes northern Argentina

A 6.4-magnitude earthquake struck northern Argentina in the early hours of Monday morning, the US Geological Survey said.

The tremor hit at 2:07am local time 21 miles east-southeast of Suncho Corral in Santiago del Estero province.

There were no immediate reports of casualties or damage.

Suncho Corral lies about 630 miles northwest of the capital Buenos Aires.