BOGOTA, Colombia Thousands of people were evacuated in Chile and Argentina after a 7.4 magnitude earthquake off Chile's southern coast prompted authorities to issue a tsunami warning that was lifted hours later. The Chilean National Seismological Center said the earthquake struck at 9.58 a.m. (1358 GMT) local time in the Drake Passage, situated between Cape Horn and Antarctica. Its epicenter was located 219 km (136 miles) from Ushuaia, Argentina, recognized as the world's southernmost city. The