Global Volcanism Program | Image GVP-06303
The eastern wall of the Toba caldera forms the horizon across Lake Toba from Samosir Island in the foreground. The small Tuk-Tuk peninsula (center) extends into the lake from the 630 km2 island. The small conical peak on the horizon at left-center is Tandukbenua volcano, which may have erupted only a few hundred years ago.
Photo by Bill Rose, 1982 (Michigan Technological University).
This image is made available under the Creative Commons BY-NC-ND 4.0 license terms.