DUNCAN, A.M., GASPAR, J., GUEST, J.E., BAXTER, P., CHESTER, D., COLE, P., PACHECO, J., WALLENSTEIN, N., FERREIRA, T.(1997) - The role of the scientific community in providing risk information to civil authorities: Furnas Volcano, Azores (Com. Oral). Extre

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Referência Bibliográfica

DUNCAN, A.M., GASPAR, J., GUEST, J.E., BAXTER, P., CHESTER, D., COLE, P., PACHECO, J., WALLWNSTEIN, N., FERREIRA, T.(1997) - The role of the scientific community in providing risk information to civil authorities: Furnas Volcano, Azores. Extreme Natural Disasters, The Royal Society. Londres (Comunicação Oral).

Resumo

There are three central volcanoes on the island of São Miguel in the Azores which are active and have given rise to explosive trachytic eruptions since the settlement of the island or in the very recent geological past: Sete Cidades, Fogo (Água de Pau) and Furnas (Booth et al. 1978, Moore 1990). In the rift zones between these central volcanoes monogenetic basaltic eruptions occur forming cinder cones and aa lava flows, the last such an eruption in 1652 AD took place in the waist zone between Fogo and Sete Cidades. Basaltic eruptions also close offshore with the development of phreatomagmatic tuff cones. It is the purpose of this paper briefly to consider the hazard posed by Furnas Volcano and to discuss the kind of information and assessment scientists need to provide to enable the civil authorities to minimise risk. This approach follows the format of general prediction as set out by Walker (1974), issues related to the direct monitoring of a volcano, specific prediction, are not addressed.

Observações

Anexos

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