VOLCANO ERUPTS AFTER 400 YEARS

(AP Photo/Binsar Bakkara)

A villager covers her nose and mouth from volcanic ash as Mount Sinabung spews smoke in the background in Karo, North Sumatera, Indonesia, Saturday, Aug. 28, 2010. The volcano blew up thick smoke and materials on Friday causing hundreds of people to flee their villages despite the absence of evacuation order from authorities. Indonesia has 500 volcanoes, more than any other countries in the world.

Reuters

Indonesia, the world's largest archipelago, is on the so-called "Ring of Fire," an arc of volcanos and fault lines encircling the Pacific Basin.