首页> 中文期刊> 《地质学报:英文版》 >Typology of Natural Hazards and Assessment of Associated Risks in the Mount Bambouto Caldera(Cameroon Line,West Cameroon)

Typology of Natural Hazards and Assessment of Associated Risks in the Mount Bambouto Caldera(Cameroon Line,West Cameroon)

         

摘要

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 km^2 and culminates at 2740 m at Meletan 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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