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¿Volverá el volcán Teide a hacer erupción?

Authors: Martí Molist, Joan; Geyer, Adelina; Dorado García, Olaya;

¿Volverá el volcán Teide a hacer erupción?

Abstract

La cuantificación del peligro en los sistemas volcánicos caracterizados por un largo período de reposo es difícil debido a la falta de conocimiento de la historia volcánica pasada y también porqué en muchos casos el vulcanismo no se percibe como un problema potencial, ya que solo se lo considera una atracción para el turismo o una fuente de beneficio económico, ocultando así la necesidad de realizar una evaluación de riesgos. El Teide, en la isla de Tenerife (Islas Canarias), no es una excepción a esta regla general y, a pesar de ser uno de los volcanes compuestos más grandes del mundo, la población, los visitantes, e incluso algunos científicos lo consideran un volcán no activo. Sin embargo, la evidencia geológica y geofísica, incluida una gran diversidad de señales de monitoreo registradas durante las últimas décadas, así como una simple comparación con volcanes similares que han hecho erupción en los últimos tiempos después de cientos o incluso miles de años de inactividad, recomiendan considerar el Teide como un volcán activo y tomar las precauciones necesarias en una isla con casi un millón de habitantes permanentes y casi 5 millones de visitantes por año. ¿Cuál es el potencial para que el Teide vuelva a entrar en erupción? es la pregunta que debe responderse primero si asumimos el hecho de considerar al Teide como un volcán activo. Basado en el conocimiento vulcanológico, petrológico y geofísico actual, proponemos un modelo conceptual sobre los mecanismos de recarga de magma, la estructura del sistema magmático, los procesos pre-eruptivos y la dinámica del volcán Teide que ayuda a comprender su comportamiento y anticipar actividades futuras.

The quantification of hazard in volcanic systems characterised by long repose period is difficult because the lack of knowledge of the past volcanic history. Also, in many cases, volcanism is not perceived as a potential problem, being only regarded as an attraction for tourism or a source of economic benefit, thus hiding the need to conduct hazard assessment. Teide, in the island of Tenerife (Canary Islands), is not an exception to this general rule and, despite being one of the largest composite volcanoes in the World, it is generally considered as a non-active volcano by population, visitors and even by some scientists. However, geological and geophysical evidence, including a large diversity of monitoring signals recorded during last decades, as well as a simple comparison with similar volcanoes that have erupted in recent times after hundreds or even thousands of years of quiescence, recommend to consider Teide as an active volcano. This implies taking into account the necessary precaution in an island with nearly one million of permanent inhabitants and nearly 5 millions of visitors per year. What is the potential for Teide to erupt again? is the question that relies behind the fact of considering it as active, and that needs to be answered first. Based on the current volcanological, petrological and geophysical knowledge we propose a conceptual model on the magma recharge mechanisms, structure of the plumbing system, and eruption triggers and dynamics of Teide volcano that helps to understand its behaviour and to anticipate future activity.

Esta contribución es parte del proyecto EVE (EC-DG ECHO Ref: 826292)

X Congreso Geológico de España, 5-7 Julio 2021, Vitoria - Gasteiz

Keywords

Tenerife, riesgo volcánico, procesos pre-eruptivos, sistema magmático, Teide

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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