Soputan is a stratovolcano in Indonesia. It is on the northern arm of Sulawesi island and rises to an elevation of 1,785 m. 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 m…Soputan is a stratovolcano in Indonesia. It is on the northern arm of Sulawesi island and rises to an elevation of 1,785 m. 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.
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