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Global Volcanism Program | Image GVP-01704

An eruption in 1991 dramatically modified the morphology of the central scoria cone on the small Barren Island, one of the Andaman Islands, north of Sumatra. During the eruption the height of the cinder cone was reduced from 305 to 225 m, and the diameter of its crater increased from 60 to about 200 m. Two small scoria cones also formed in the lava field west of the main cone. Photo courtesy of D. Haldar, 1992 (Geological Survey of India).

An eruption in 1991 dramatically modified the morphology of the central scoria cone on the small Barren Island, one of the Andaman Islands, north of Sumatra. During the eruption the height of the cinder cone was reduced from 305 to 225 m, and the diameter of its crater increased from 60 to about 200 m. Two small scoria cones also formed in the lava field west of the main cone.

Photo courtesy of D. Haldar, 1992 (Geological Survey of India).

Keywords: scoria cone | crater | vent | volcanic field


Barren Island