The Calbuco volcano in southern Chile erupted Wednesday for the first time in more than 40 years. Onemi officials declared a red alert after the eruption near the tourist towns of Puerto Varas and Puerto Montt, about 625 miles south of Santiago. An evacuation radius was established and an estimated 4,000 people had been moved out the area. There were no reports of deaths, injuries or missing persons, according to Interior Minister Rodrigo Penailillo. Officials described a large amount of ash emerged from the volcano, but no hot rocks or lava had been observed.