One of the most consistently highly explosive eruptive centers in all of South America is a volcano that few people have ever heard of. Every time without exception during the last 10,000 years that this particular volcano has erupted, it has always produced a plinian eruption that registered on the volcanic explosivity index as a 4 or 5. What I am referring to is a Colombian volcano known as Cerro Bravo.
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Sources/Citations:
[1] Servicio Geológico Colombiano
[2] Emilce, Bustos & Arnosio, Marcelo & Murcia, Hugo & Palacio, Eliana & Gómez‐Vasconcelos, Martha. (2023). Volcanic evolution through geomorphological mapping: A case study of Cerro Bravo volcano (Colombia). Journal of South American Earth Sciences. 128. 393–414. 10.1016/j.jsames.2023.104472.
[3] Palacio, Eliana & Murcia, Hugo. (2017). Morphological analysis of Cerro Bravo Volcano, Central Andes of Colombia.
[4] Herrick, Julie. (2013). Cerro Bravo (Colombia):In repose; 1st report disclosing background conditions and hazards. Bulletin of Global Volcanism Network. 38. 39.
[5] VEIs, dates/years, composition, tephra layer name, DRE estimates, and bulk tephra volume estimates for volcanic eruptions shown in this video which were assigned a VEI 4 or larger are sourced from the LaMEVE database (British Geological Survey © UKRI), https://www2.bgs.ac.uk/vogripa/view/c..., Used with Permission
[6] Source of Volcanic Explosivity Index (VEI) methodology and criteria: Newhall, C. G., and Self, S. (1982), The volcanic explosivity index (VEI) an estimate of explosive magnitude for historical volcanism, J. Geophys. Res., 87(C2), 1231–1238, doi:10.1029/JC087iC02p01231.
0:00 Highly Explosive Volcanoes
0:42 Cerro Bravo
1:56 Geologic Setting
2:30 Volcano Explosiveness
2:57 Geologic History
3:15 Post Collapse Eruptions
4:00 Crater Trend
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