Report on Karangetang (Indonesia) — September 1987
Scientific Event Alert Network Bulletin, vol. 12, no. 9 (September 1987)
Managing Editor: Lindsay McClelland.
Karangetang (Indonesia) Rumblings, but no more explosions reported
Please cite this report as:
Global Volcanism Program, 1987. Report on Karangetang (Indonesia) (McClelland, L., ed.). Scientific Event Alert Network Bulletin, 12:9. Smithsonian Institution. https://doi.org/10.5479/si.GVP.SEAN198709-267020
2.781°N, 125.407°E; summit elev. 1797 m
All times are local (unless otherwise noted)
Rumblings from the volcano were heard during September. . . . no activity had been reported in August.
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.
Information Contacts: VSI.