BUENOS AIRES, Aug. 4 (Xinhua) -- An earthquake measuring 6.1 on the Richter scale jolted Argentina's La Quiaca Thursday, the U.S. Geological Survey (USGS) said.
The quake occurred 48 km west-south west of La Quiaca at 14:15:11 GMT, with an depth of 253.98 km, the USGS said.










