Global Volcanism Program | Image GVP-00739
The Tengger caldera complex forms the large depression in the background of this view from Semeru volcano to its south. The compound caldera consists of the 16-km-wide Ngadisari caldera and the younger Sandsea caldera. A faint steam plume lingers at the center of the photo above Bromo, the source of all historical eruptions at Tengger caldera. Gunung Bromo is part of a complex of pyroclastic cones constructed within the Sandsea caldera.
Copyrighted photo by Katia and Maurice Krafft, 1971.