Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Nat. Hazards Earth Syst. Sci., 17, 1145-1157, 2017
https://doi.org/10.5194/nhess-17-1145-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
11 Jul 2017
Assessing qualitative long-term volcanic hazards at Lanzarote Island (Canary Islands)
Laura Becerril1, Joan Martí1,a, Stefania Bartolini1, and Adelina Geyer1 1Institute of Earth Sciences Jaume Almera, ICTJA-CSIC, Lluís Solé i Sabarís s/n, 08028 Barcelona, Spain
anow at: the Institut des Sciences de la Terre d'Orléans (ISTO, CNRS), Université d'Orléans, Campus Géosciences, 1A rue de la Férolerie, 45071, Orléans CEDEX 2, France
Abstract. Conducting long-term hazard assessment in active volcanic areas is of primary importance for land-use planning and defining emergency plans able to be applied in case of a crisis. A definition of scenario hazard maps helps to mitigate the consequences of future eruptions by anticipating the events that may occur. Lanzarote is an active volcanic island that has hosted the largest (>  1.5 km3 DRE) and longest (6 years) eruption, the Timanfaya eruption (1730–1736), on the Canary Islands in historical times (last 600 years). This eruption brought severe economic losses and forced local people to migrate. In spite of all these facts, no comprehensive hazard assessment or hazard maps have been developed for the island. In this work, we present an integrated long-term volcanic hazard evaluation using a systematic methodology that includes spatial analysis and simulations of the most probable eruptive scenarios.

Citation: Becerril, L., Martí, J., Bartolini, S., and Geyer, A.: Assessing qualitative long-term volcanic hazards at Lanzarote Island (Canary Islands), Nat. Hazards Earth Syst. Sci., 17, 1145-1157, https://doi.org/10.5194/nhess-17-1145-2017, 2017.
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Short summary
Lanzarote is an island (Canaries, Spain), that has hosted the largest and longest eruption in the archipelago (Timanfaya 1730–36). It brought severe economic losses and forced local people to migrate. We have developed the first comprehensive hazard assessment for the island. New eruptions will take place close to the last one and will be characterised by Strombolian activity, with ash emission towards the S, medium-length lava flows and hydromagmatic activity only close to the coastal areas.
Lanzarote is an island (Canaries, Spain), that has hosted the largest and longest eruption in...
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