In this photo by Binsar Bakkara, Mount Sinabung releases pyroclastic flows as seen from Tiga Serangkai in North Sumatra province, Indonesia. Villages within 3 kilometers of the volcano have already been abandoned since Sinabung has erupted regularly since August 2010. Wednesday's activity did not change the volcano's alert status, which remains at the third-highest level, nor did it cause any casualties. More than 18,000 people have evacuated their homes near Sinabung, though most have returned and some resettled outside the danger area. The 2,600-meter (8,530-foot) volcano is among about 130 that are active in Indonesia. Before 2010, Sinabung was dormant for more than 400 years.