2010 eruptions of Mount Merapi continued to push its way up into the volcano's lava dome. A pyroclastic river flowed from Merapi again on 30 October 2010 at 00:35. A pyroclastic flow headed toward Gendol River, Kuning River, Krasak River, and Boyong River. This was then followed by an explosion from Merapi resulting in a two-kilometre vertical high fire ball rising from the top of the mountain . This eruption caused raining sand to fall on areas to a radius of up to from the volcano. Amongst activities from government and NGO's the Indonesian Red Cross and Red Crescent (PMI) had by this time fielded
Ring of Fire in 1929; a magnitude 8.1 in 1949 (Canada's largest recorded earthquake); and a magnitude 7.4 in 1970. The Ring of Fire is a direct result of plate tectonics: the movement and collisions of lithospheric plates. The eastern section of the ring is the result of the Nazca Plate and the Cocos Plate being subducted beneath the westward-moving South American Plate. The Cocos Plate is being subducted beneath the Caribbean Plate, in Central America. A portion of the Pacific Plate and the small Juan de Fuca Plate are being subducted beneath the North American Plate. Along the northern portion, the northwestward-moving