By Johan ORDÓÑEZ with Henry MORALES in Guatemala City | Posted by TOEHundreds of people living on the slopes of Guatemala’s Fuego volcano evacuated their homes Tuesday after a huge eruption spewed lava and plumes of ash. Emergency services issued a red alert, the most severe warning, after Central America’s most active volcano erupted Monday morning, with conditions intensifying by nightfall. Rivers of lava streamed down the 3,763-meter (12,346-foot) volcano located less than 100 kilometers from Guatemala City, while ash rose some six kilometers into the red sky. Fuego had been erupting for 23 hours straight by Tuesday morning, it said, although the intensity was easing slightly. Authorities evacuated more than 500 people last year after Fuego spurted out gas and ash, with residents moved to shelters from communities near the crater.