Mount Merapi subduction zone, where the Indo-Australian Plate is subducting under the Sunda Plate. It is one of at least 129 active volcanoes in Indonesia, part of the volcano is located in the Southeastern part of the Pacific Ring of Fire–a section of fault lines stretching from the Western Hemisphere through Japan and South East Asia. Stratigraphic analysis reveals that eruptions in the Merapi area began about 400,000 years ago, and from then until about 10,000 years ago, eruptions were typically effusive, and the out flowing lava emitted was basaltic. Since then, eruptions have become more explosive, with viscous andesitic lavas often
2010 eruptions of Mount Merapi Mount Merapi. "We are concerned about children who are yet to be united with their parents," said Makbul Mubarak, a coordinator for volunteers who are trying to reunite separated families. A Merapi Response Radio 100.2 FM "talk show" presented the Yogyakarta Governor, Sri Sultan Hamengkubuwono X, the head of the BNPB, Dr. Syamsul Maarif, and chief of the PVMBG, Dr. Surono on evening of 11 November. A media center and a call center were also established to attempt to assist in bridging an information gap related to information on current conditions and the management of victims of Merapi. BNPB stated