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).

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).

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Keywords: caldera

Toba