Complex sentence: 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.
Split into simpler sentences: The 2,460 meter high andesitic-todacitic volcano comes from the Sunda Arc. This is created by the subduction of the Indo-Australian Plate under the Eurasian Plate.