Mount Sinabung is a Pleistocene-to-Holocene stratovolcano. It is located in a relatively cool area on a fertile plateau with mountains bounding the north. The summit crater of the volcano has a complex, longer form due to vents migrating on the N-S line. The 2,460 meter high andesitic-to-dacitic volcano comes from the Sunda Arc, which is created by the subduction of the Indo-Australian Plate under the Eurasian Plate. The Andaman Islands are on the North-Northwest bound of the arc while the Banda Arc is on the East. Sinabung has a total of four volcanic craters, one of them being active currently.