The death toll from a devastating earthquake that flattened dozens of buildings in western Colombia jumped to 224, local authorities said on Tuesday as emergency workers dug through the wreckage for survivors.The 7.4 magnitude earthquake, the most powerful to strike the South American country in decades, tore through Colombia's coffee-growing heartland early on Monday, reduced multi-story buildings to rubble in cities such as Pereira and Cali, and caused one of the spires of a cathedral in the...