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Title

A retrospective study of the pre-eruptive unrest on El Hierro (Canary Islands): implications of seismicity and deformation in the short-term volcanic hazard assessment

AuthorsBartolini, Stefania ; López, Carmen ; Becerril, Laura ; Sobradelo, R.; Martí Molist, Joan
KeywordsLong-term
Submarine eruption
Tool
Susceptibility
Montserrat
Indicators
Migration
Tremors
Complex
Example
Issue DateJun-2018
PublisherEuropean Geosciences Union
CitationNatural Hazards and Earth System Sciences, 18: 1759-1770 (2018)
AbstractThe correct identification and interpretation of unrest indicators is useful for forecasting volcanic eruptions, delivering early warnings, and understanding the changes occurring in a volcanic system prior to an eruption. Such indicators play an important role in upgrading previous long-term volcanic hazard assessments and help explain the complexities of the preceding period of eruptive activity. In this work, we present a retrospective analysis of the 2011 unrest episode on the island of El Hierro, Canary Islands, that preceded a submarine eruption. We use seismic and surface deformation monitoring data to compute the susceptibility analysis (QVAST tool) and to study the evolution over time of the unrest (ST-HASSET tool). Additionally, we show the advantages to be gained by using continuous monitoring data and hazard assessment e-tools to upgrade spatiotemporal analyses and thus visualize more simply the development of the volcanic activity.
Publisher version (URL)https://doi.org/10.5194/nhess-18-1759-2018
URIhttp://hdl.handle.net/10261/167392
DOI10.5194/nhess-18-1759-2018
ISSN1561-8633
E-ISSN1684-9981
Appears in Collections:(ICTJA) Artículos
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