Global Volcanism Program | Image GVP-01145
This composite photo shows the steep-walled, 2-km-wide summit caldera of Raung volcano. A 90-m-high scoria cone shown producing a plume on the caldera floor at the left began to form in 1902 and is the source of recent explosive eruptions. Fresh lava flows cover the caldera floor.
Photo by Igan Sutawidjuja, 1984 (Volcanological Survey of Indonesia).