ABC News reports that "A volcano in western Indonesia erupted again Sunday, unleashing volcanic ash high into the sky and forcing the evacuation of villagers living around its slope. Officials raised Mount Sinabung's alert status to the second-highest level after the 2,600-meter (8,530-foot) -high mountain erupted early Sunday, said National Disaster Mitigation Agency spokesman Sutopo Purwo Nugroho. Authorities were working to evacuate residents from four North Sumatra province villages located within the mountain's three-kilometer (two-mile) danger zone, Nugroho said. About 1,300 villagers have been relocated to safer areas so far. It was the volcano's second big eruption since late last month, with its Oct. 24 explosion prompting the evacuation of more than 3,300 people." This video of Sinabung's 2010 eruption gives some clue about what to expect.