Report on Soputan (Indonesia) — April 1996

Bulletin of the Global Volcanism Network, vol. 21, no. 4 (April 1996)
Managing Editor: Richard Wunderman

Soputan (Indonesia) Small eruption on 15 March seen on satellite imagery

Please cite this report as:

Global Volcanism Program, 1996. Report on Soputan (Indonesia). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 21:4. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN199604-266030.

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Soputan

Indonesia

1.112°N, 124.737°E; summit elev. 1785 m

All times are local (unless otherwise noted)


An ash cloud to 4.5 km altitude was reported in an aviation notice on 15 March. Imagery from the GMS-5 satellite confirmed the presence of an eruption plume during 0425-0632 GMT. A small plume can be seen on the 0425 image, but there was a definite plume with arms extending W and SW by 0532. The plume was still connected to the volcano at 0632, although it was starting to dissipate. On the 0732 image the plume was still visible, but appeared to have been disconnected from the volcano for some time.

Geologic Background. The Soputan stratovolcano on the southern rim of the Quaternary Tondano caldera on the northern arm of Sulawesi Island is one of Sulawesi's most active volcanoes. The youthful, largely unvegetated volcano rises to 1784 m and is located SW of Riendengan-Sempu, which some workers have included with Soputan and Manimporok (3.5 km ESE) as a volcanic complex. It was constructed at the southern end of a SSW-NNE trending line of vents. During historical time the locus of eruptions has included both the summit crater and Aeseput, a prominent NE-flank vent that formed in 1906 and was the source of intermittent major lava flows until 1924.

Information Contacts: Bureau of Meteorology, P.O. Box 735, Darwin NT 0801, Australia; Ian Sprod, Code 921, NASA Goddard Space Flight Center, Greenbelt MD 20771, USA (Email: ian@skye.gsfc.nasa.gov, URL: http://skye.gsfc.nasa.gov/).