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Report on Soputan (Indonesia) — 22 May-28 May 2019

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 22 May-28 May 2019
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2019. Report on Soputan (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 22 May-28 May 2019. Smithsonian Institution and US Geological Survey.

Volcano Profile |  Weekly Report (22 May-28 May 2019)


Soputan

Indonesia

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

All times are local (unless otherwise noted)


PVMBG reported that during 22-28 May white plumes rose as high as 100 m above Soputan’s summit. On 27 May white-to-gray plumes rose 150 m high. The Alert Level remained at 3 (on a scale of 1-4). The public was advised not to approach the craters within a radius of 4 km, or 6.5 km on the WSW flank.

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 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.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)