Report on Karangetang (Indonesia) — November 1992
Bulletin of the Global Volcanism Network, vol. 17, no. 11 (November 1992)
Managing Editor: Lindsay McClelland.
Karangetang (Indonesia) Heavy rains prompt lahar warning
Please cite this report as:
Global Volcanism Program, 1992. Report on Karangetang (Indonesia) (McClelland, L., ed.). Bulletin of the Global Volcanism Network, 17:11. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN199211-267020.
2.781°N, 125.407°E; summit elev. 1797 m
All times are local (unless otherwise noted)
Heavy rainfall has recently occurred on the S flank, where six farmers were killed by a pyroclastic flow in May (17:04). Local authorities were officially warned of the lahar hazard to farmers in the area. Activity at the volcano has declined to normal levels since August.
Geologic Background. 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 island. 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 in the historical record (Catalog of Active Volcanoes of the World: 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.
Information Contacts: W. Modjo, VSI.