Report on Karangetang (Indonesia) — 8 November-14 November 2000
Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
8 November-14 November 2000
Managing Editor: Gari Mayberry
Please cite this report as:
Global Volcanism Program, 2000. Report on Karangetang (Indonesia). In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 8 November-14 November 2000. Smithsonian Institution and US Geological Survey.
2.781°N, 125.407°E; summit elev. 1797 m
All times are local (unless otherwise noted)
The VSI reported that volcanic activity continued at Karangetang. At 2030 on 2 November a small explosion produced an ash cloud that reached a height of 1.5 km above the volcano. The ejected material fell around the summit and flowed 1.5 km down the E, S, and W flanks of the volcano. A "red flame" was observed some nights rising ~ 75 m above the volcano's summit.
Geological Summary. Karangetang (Api Siau) volcano lies at the northern end of the island of Siau, about 125 km NNE of the NE-most point of Sulawesi. The stratovolcano contains five summit craters along a N-S line. It is one of Indonesia's most active volcanoes, with more than 40 eruptions recorded since 1675 and many additional small eruptions that were not documented (Neumann van Padang, 1951). Twentieth-century eruptions have included frequent explosive activity sometimes accompanied by pyroclastic flows and lahars. Lava dome growth has occurred in the summit craters; collapse of lava flow fronts have produced pyroclastic flows.