Global Volcanism Program | Image GVP-06310
Pusukbukit, a volcano in the Toba caldera, was constructed just within the western caldera rim. It is seen here across a narrow strait from Samosir Island, with light-colored areas containing fumaroles along its northern flank. The youngest lava flow on Pusukbukit is of dacitic composition.
Photo by Mike Dolan, 1993 (Michigan Technological University).
This image is made available under the Creative Commons BY-NC-ND 4.0 license terms.