Global Volcanism Program | Image GVP-00534

The northern wall of Toba caldera rises about 500 m above the village of Haranggoal. Samosir Island, visible in the distance across Lake Toba on the right, is part of an uplifted block of caldera-fill deposits from the last major eruption of Toba about 74,000 years ago. Photo by Tom Casadevall, 1987 (U.S. Geological Survey)

The northern wall of Toba caldera rises about 500 m above the village of Haranggoal. Samosir Island, visible in the distance across Lake Toba on the right, is part of an uplifted block of caldera-fill deposits from the last major eruption of Toba about 74,000 years ago.

Photo by Tom Casadevall, 1987 (U.S. Geological Survey)

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Keywords: caldera

Toba