Typology of Natural Hazards and Assessment of Associated Risks in the Mount Bambouto Caldera (Cameroon Line,West Cameroon) |
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Authors: | Ghislain T. ZANGMO Armand D. KAGOU David G. NKOUATHIO Pierre WANDJI |
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Affiliation: | [1]Department of Earth Science, Faculty of Science, University of Dschang, Cameroon [2]Laboratory of Geology, High Teacher Training School, University of Yaounde I, Cameroon |
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Abstract: | Mount Bambouto is a polygenic stratovolcano of the Cameroon Volcanic Line, built between 21 Ma and 4.5 Ma. It is situated approximately 200 km NE of Mount Cameroon, between 09° 55′ and 10°15′ longitude east and, 05°25′ and 05°50′ latitude north. The volcano covers an area of 500 km2 and culminates at 2740 m at Mélétan dome and bears a collapsed caldera at the summit (13 × 8 km). Mount Bambouto is characterized by several natural hazards of different origins: meteorological, such as landslides and rock falls; anthropogenic, such as bushfires, tribal wars and deforestation; and volcanological, such as volcanic eruption. The thematic map shows that 55–60% of the caldera has high probability of occurrence of mass movement. The caldera has a high population density (3000 inhabitants), which increases the level of risk, evaluated at approximately $US3.8 million for patrimony, 3000 civilian deaths and destruction of biodiversity. |
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Keywords: | caldera hazard risk assessment Mount Bambouto Cameroon Line |
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