Gunung Semuning (Ranau caldera) volcan

Ranau is an 8 x 13 km caldera partially filled by the crescent-shaped Lake Ranau.

Introduction:

A morphologically young post-caldera stratovolcano, Gunung Semuning, was constructed within the SE side of the caldera to a height of more than 1600 m above the caldera lake surface. The volcano has not been mapped in sufficient detail to determine the age of its latest eruptions, although fish kills and sulfur smells in the late 19th and early 20th centuries may be related to sublacustral eruptions.

Source: Smithsonian GVP

Gunung Semuning (Ranau caldera) Photos:

The Tengger caldera in the morning (c)	The Stephanos crater seen from Nikia village (c)	The Tengger caldera in Indonesia (Photo: Tobias Schorr)
The steaming crater of Bromo volcano in the Tengger caldera in Indonesia (Photo: Tobias Schorr)	View into the Tengger caldera with ist volcanoes Bromo, Batok, Semeru in July 2009 (Photo: Tobias Schorr)	The Tengger caldera in the morning (c)