Publication Date:
2017-04-04
Description:
The 2011 submarine eruption that took place in the proximity of El Hierro Island (Canary Islands, Spain) has
raised the need to identify the most likely future emission zones even on volcanoes characterized by low
frequency activity. Here, we propose a probabilistic method to build the susceptibility map of El Hierro,
i.e. the spatial distribution of vent opening for future eruptions, based on the probabilistic analysis of
volcano-structural data of the Island collected through newfieldworkmeasurements, bathymetric information,
as well as analysis of geological maps, orthophotos and aerial photographs. These data have been
divided into different datasets and converted into separate and weighted probability density functions,
which were included in a non-homogeneous Poisson process to produce the volcanic susceptibility map.
The most likely area to host new eruptions in El Hierro is in the south-western part of the West rift. High
probability locations are also found in the Northeast and South rifts, and along the submarine parts of the
rifts. This map represents the first effort to deal with the volcanic hazard at El Hierro and can be a support
tool for decision makers in land planning, emergency measures and civil defense actions.
Description:
This work has been partially funded by the Spanish Geological
Survey (IGME) through the MODEX Project (directed by Luis Laín)
and a Research Grant for LB, and the Research grant program “Innova
Canarias 2020®” from the “Fundación Universitaria de Las Palmas”.
Description:
Published
Description:
21-30
Description:
1V. Storia e struttura dei sistemi vulcanici
Description:
2V. Dinamiche di unrest e scenari pre-eruttivi
Description:
3V. Dinamiche e scenari eruttivi
Description:
4V. Vulcani e ambiente
Description:
JCR Journal
Description:
restricted
Keywords:
Susceptibility
;
Volcanic hazard
;
Eruptive vent
;
Volcano-tectonics
;
04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous
;
04. Solid Earth::04.07. Tectonophysics::04.07.99. General or miscellaneous
;
04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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