Bagana
Mt Bagana | |
---|---|
Bougainville, Papua New Guinea
| |
Parent range | Emperor Range |
Geology | |
Mountain type | Lava cone |
Last eruption | 2000 to 2022 (ongoing)[1] |
Bagana is an active volcanic cone located in the centre of the island of Bougainville, Papua New Guinea, the largest island of the Solomon group. It is the most active volcano in the country, occupying a remote portion of central Bougainville Island. It is one of Melanesia's youngest and most active volcanoes.
Bagana is a massive symmetrical, roughly 1855-m-high lava cone largely constructed by an accumulation of viscous andesitic lava flows. The entire lava cone could have been constructed in about 300 years at its present rate of lava production. Eruptive activity at Bagana is frequent and is characterized by non-explosive effusion of viscous lava that maintains a small lava dome in the summit crater, although explosive activity occasionally producing pyroclastic flows also occurs. Lava flows form dramatic, freshly preserved tongue-shaped lobes up to 50 m thick with prominent levees that descend the volcano's flanks on all sides.[2]
Just north-east of Bagana is the volcano crater lake
See also
References
- ^ a b "Bagana". Global Volcanism Program. Smithsonian Institution.
- ^ "Earthquake-Report.com". 26 July 2012.
- S2CID 129779259
- ^ "Volcano erupts", Life Magazine, p. 42, 29 November 1948