Merapi, one of Indonesia's most active volcanoes, lies in  one of the world's most densely populated areas and  dominates the landscape immediately north of the major city  of Yogyakarta. Merapi is the youngest and southernmost of  a volcanic chain extending NNW to Ungaran volcano.  Growth of Old Merapi volcano beginning during the  Pleistocene ended with major edifice collapse perhaps  about 2000 years ago, leaving a large arcuate scarp cutting  the eroded older Batulawang volcano. Subsequently growth  of the steep-sided Young Merapi edifice, its upper part  unvegetated due to frequent eruptive activity, began SW of  the earlier collapse scarp. Pyroclastic flows and lahars  accompanying growth and collapse of the steep-sided active  summit lava dome have devastated cultivated lands on the volcano's western-to-southern flanks  and caused many fatalities during historical time. The volcano is the object of extensive monitoring  efforts by the Merapi Volcano Observatory. (Global Volcanism Program)  ----------------------------------------------------------------------------------------------------------------------------------- Merapi Location: 7.542° S, 110.442° E Elevation: 2.947 m author: ctsnow Photograph by John Stanmeyer view from the airplane Photo: Rolf Cosar HOME