Exploring lava-flow hazards at Pico Island, Azores Archipelago (Portugal)

Pico, the youngest island of the Azores Archipelago (Portugal), is characterized by a central volcano and a 30‐km‐long fissure zone. Its eruption rate is the highest of the Azores islands, with more than 35 eruptions in the last 2000 years. Here, we estimate the lava‐flow hazard for Pico Island by c...

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Bibliographic Details
Published in:	Terra nova (Oxford, England) Vol. 27; no. 2; pp. 156 - 161
Main Authors:	Cappello, Annalisa, Zanon, Vittorio, Del Negro, Ciro, Ferreira, Teresa J. L., Queiroz, Maria G. P. S.
Format:	Journal Article
Language:	English
Published:	Oxford Blackwell Publishing Ltd 01-04-2015
Subjects:	Archipelagoes Geophysics Land use Land use planning Lava Spatial distribution Volcanic eruptions Volcanoes ANE, Portugal ANE, Atlantic, Azores ANE, Atlantic, Azores, Pico ANE, Atlantic, Azores, Lajes do Pico
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Summary:	Pico, the youngest island of the Azores Archipelago (Portugal), is characterized by a central volcano and a 30‐km‐long fissure zone. Its eruption rate is the highest of the Azores islands, with more than 35 eruptions in the last 2000 years. Here, we estimate the lava‐flow hazard for Pico Island by combining the vent opening probability derived from the spatial distribution of eruptive fissures, the classes of expected eruptions inferred from the physical and chemical characteristics of historical eruptions, and the lava‐flow paths simulated by the MAGFLOW model. The most likely area to host new eruptions is along a WNW–ESE trend centred on the central volcano, with the highest hazard affecting the two main residential zones of Lajes do Pico and Madalena. Our analysis is the first attempt to assess the lava‐flow hazard for Pico Island, and may have important implications for decision‐making in territorial management and future land‐use planning.
Bibliography:	Fundo Regional para a Ciência - No. 03.1.7.2007.1 ark:/67375/WNG-J53XTPHL-1 istex:83140FE69810EC01A84BB6DC99F0DD0639743CD9 Fundação para a Ciência e Tecnologia - No. PTDC/CTE-GIX/098836/2008 European Science Foundation ArticleID:TER12143 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0954-4879 1365-3121
DOI:	10.1111/ter.12143