Sundoro (Indonesia)

Status Normal Eruption 1971 3136m
Stratovolcano (Subduction zone / Continental crust (> 25 km))

Gunung Sundoro, one Java's most symmetrical volcanoes, is separated by a 1400-m-high saddle from Sumbing volcano. 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, 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. Pyroclastic-flow deposits dated at 1720 years before present extend as far as 13 km from the summit. Historical eruptions typically have consisted of mild-to-moderate phreatic explosions, mostly from the summit crater. Flank vents were also active in 1882 and 1903.

Farmers cultivate land on the eastern flank of picturesque Gunung Sundoro, one of the most symmetrical volcanoes in Java. The 3136-m-high stratovolcano towers 2500 m above its base, immediately NW of its neighboring conical volcano, Gunung Sumbing. A small lava dome occupies the summit crater, which has fed lava flows in all directions. Historical eruptions typically have consisted of mild-to-moderate phreatic explosions, mostly from the summit crater, although flank vents were also active in 1882 and 1903.

Photo by Lee Siebert, 1995 (Smithsonian Institution).

Last updated 2024-04-19 01:33:12