Mount Sinabung spews ash and smoke as it is pictured from Tiga Pancur village in Karo district, Indonesia's north Sumatra province, Nov 4, 2013. A volcano erupted for the third time in as many months on the western Indonesian island of Sumatra, forcing hundreds of villagers to evacuate, officials said. Mount Sinabung spewed a 7-km (4.3-mile) column of ash into the air on Sunday, prompting authorities to impose a 3-km evacuation radius. Picture taken Nov 4, 2013. [Photo/Agencies]