BackgroundMany parasitic craters and cones, the largest of which is Kembang, occur on the NW-to-southern flanks, and all fed lava flows. A small lava dome occupies the summit crater of the 3136-m-high volcano, and numerous phreatic explosion vents were formed along radial fissure that cut the dome and extend across the crater rim.
Lava flows extend in all directions from the summit crater. Deposits of a large prehistoric debris avalanche are located below the NE flank of Sundoro. Pyroclastic-flow deposits dated at 1720 years before present extend as far as 13 km from the summit.
Source: GVP Sundoro information
View over Sumbing and Sundoro stratovolcanoes in Central Java, seen from the top of Merapi (Feb 2015) (image: Юлия Грубник) (Photo: ThomasH)
See also: Sentinel hub | Landsat 8 | NASA FIRMS