A strong 6.1 magnitude earthquake shook southwest Colombia on Saturday afternoon, the USGS said, though there were no immediate reports of casualties or significant damage. The quake hit at 2:19 pm local time (1921 GMT), seven kilometers (four miles) northwest of the town of El Dovio in the Department of Valle del Cauca, at a depth of 113.3 kilometers (70.4 miles), the US Geological Survey said. Marta Lucia Calvache, a spokeswoman for the Colombian Geological […]