Mount Sinabung (Indonesian: Gunung Sinabung, also Dolok Sinabung, Deleng Sinabung, Dolok Sinaboen, Dolok Sinaboeng and Sinabuna) is a Pleistocene-to-Holocene stratovolcano of andesite and dacite in the Karo plateau of Karo Regency, North Sumatra, Indonesia, 25 miles from the Lake Toba supervolcano. Many old lava flows are on its flanks and the last known eruption, before recent times, occurred in the year 1600. Solfataric activities (cracks where steam, gas, and lava are emitted) were last observed at the summit in 1912; recent documented events include an eruption in the early hours of 29 August 2010 and eruptions in September and November 2013, January, February and October 2014. A pyroclastic flow in May 2016 killed 7 people. Between 2013 and 2014 the alert for a major event was increas