Soputan

Soputan is a stratovolcano in Indonesia. It is on the northern arm of Sulawesi island and rises to an elevation of 1,785m (5,853 ft). The geologically young and mostly unvegetated cone is primarily constructed of andesite and basalt rock. It sits on the southern rim of the Tondano caldera, which formed in the Quaternary period. The volcano is one of Sulawesi's most active, with 39 confirmed eruptions in the last 600 years. Eruptive activity at Soputan typically consists of pyroclastic flows, lava flows, lava domes and Strombolian-style explosions.

Soputan
Highest point
Elevation1,785 m (5,856 ft) [1]
Coordinates1°06′29″N 124°43′48″E [1]
Geography
Soputan
Sulawesi, Indonesia
Geology
Mountain typeStratovolcano
Last eruption2020
Soputan Volcano erupts, 7 June 2008

Eruptions

Historical eruptions have taken place at the summit crater, and Aeseput, a vent on the volcano's north-east flank, which was formed in 1906. The volcano has erupted in: 1450, 1785, 1819, 1833, 1845, 1890, 1901, 1906, 1907, 1908–09, 1910, 1911–12, 1913, 1915, 1917, 1923–24, 1947, 1953, 1966–67, 1968, 1970, 1971, 1973, 1982, 1984, 1985, 1989, 1991–96, 2000–03, 2004, 2005, 2005–06, 2006, 2007, 2008, 2011, 2012, 2015, 2016 and 2018.[2]

On the morning of 6 June 2008, Soputan erupted sending pyroclastic flows as far as 4 km down its slopes, and ash 2 km into the air.[3]

An eruption at 21:03 UTC on 2 July 2011 sent an ash column 5,000 metres into the air.[4]

On 6 January 2015, an eruption began when an explosion caused a partial collapse of a summit lava dome, sending an avalanche down the west flank.[5]

On 4 January 2016, the volcano exploded sending an ash plume to 2000m, which prompted authorities to establish a 4 km exclusion zone around the volcano.[6]

In 2018, Soputan erupted on 3 October, and again twice on 16 December. All three times the volcano spewed a massive column of ash more than 6,000m (19,700 ft) into the sky.[7][8] The October eruption occurred about a week after a powerful earthquake and tsunami struck the island.[9]

  • Mt. Soputan (left) and Mt. Manimporok view from Tombatu Village

See also

References
  1. "Soputan". Global Volcanism Program. Smithsonian Institution. Retrieved 2 August 2020.
  2. "Soputan". Smithsonian Institution. Retrieved 6 January 2016.
  3. "Volcano erupts in Indonesia". Sydney Morning Herald. 7 June 2008. Archived from the original on 21 December 2015.
  4. "Indonesian volcano erupts". France 24. Agence France-Presse (AFP). 3 July 2011. Archived from the original on 5 July 2011.
  5. "Soputan volcano (N Sulawesi, Indonesia): Strong explosive eruption this morning". VolcanoDiscovery. Retrieved 6 January 2016.
  6. "Volcano erupts on same Indonesian island as earlier quake". Straits Times. Retrieved 6 January 2016.
  7. Ng, Eileen (4 October 2018). "Alert level raised as Indonesia's Mount Soputan erupts". Associated Press. Archived from the original on 10 October 2018.
  8. Sukhija, Sheetal (17 December 2018). "Indonesia's Mount Soputan erupts twice, sends thick ash into the sky". The Philippine Times. Archived from the original on 17 December 2018.
  9. "Volcano erupts on Indonesia's quake and tsunami-hit Sulawesi". NBC News. Associated Press. 3 October 2018. Archived from the original on 10 October 2018.
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