Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communities
Abstract Reliable methods for volcanic impact and risk assessments are essential. They provide constructive information to emergency and disaster managers, critical infrastructure providers, the insurance industry, and wider society. Post-eruption clean-up of tephra deposits is a prevalent and expen...
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doaj-11c2c6f21768401987761a790ed275722020-11-25T03:57:23ZengBMCJournal of Applied Volcanology2191-50402019-08-018112310.1186/s13617-019-0087-3Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communitiesJosh L. Hayes0Thomas M. Wilson1Carol Stewart2Gustavo Villarosa3Pablo Salgado4Débora Beigt5Valeria Outes6Natalia I. Deligne7Graham S. Leonard8Department of Geological Sciences, University of CanterburyDepartment of Geological Sciences, University of CanterburyMassey University WellingtonIPATEC (Instituto Andino-Patagónico de Tecnologías Biológicas y Geoambientales), CONICET/UNCOIPATEC (Instituto Andino-Patagónico de Tecnologías Biológicas y Geoambientales), CONICET/UNCOIPATEC (Instituto Andino-Patagónico de Tecnologías Biológicas y Geoambientales), CONICET/UNCOIPATEC (Instituto Andino-Patagónico de Tecnologías Biológicas y Geoambientales), CONICET/UNCOGNS ScienceGNS ScienceAbstract Reliable methods for volcanic impact and risk assessments are essential. They provide constructive information to emergency and disaster managers, critical infrastructure providers, the insurance industry, and wider society. Post-eruption clean-up of tephra deposits is a prevalent and expensive (time and resource) activity which is often not planned for. Here, we present an overview of the clean-up efforts undertaken in four communities after the VEI 4 eruption of Calbuco volcano in 2015. We narratively reconstruct clean-up efforts in Ensenada (Chile), Junín de los Andes (Argentina), San Martín de los Andes (Argentina), and Villa La Angostura (Argentina) using semi-structured interviews, syn- and post-deposition photographs, pre- and post-event visual spectrum satellite imagery, and media reports. We compare these reconstructions with estimates based on a geospatial modelling approach adapted from Hayes et al. (Journal of Applied Volcanology 6:1; 2017). Specifically, we compare reported and geospatially derived estimates for volume of tephra removed, and clean-up operation duration. Our modelling approach performed well for Junín de los Andes but did not adequately capture volume and clean-up operation duration for the three remaining case study locations. We discuss several sources of uncertainty (including observational errors and natural variance of tephra deposit thickness), reported tephra removal volume estimates, clean-up methods, land use, and temporal evolution of clean-up operation demand. Our work demonstrates the utility of using simple geospatial data to develop assessments for tephra clean-up for use in response and recovery planning, and quantitative volcanic impact and risk assessments.http://link.springer.com/article/10.1186/s13617-019-0087-3Volcanic ashVolcanic hazardDisaster recoveryDisaster waste managementDisaster risk management |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Josh L. Hayes Thomas M. Wilson Carol Stewart Gustavo Villarosa Pablo Salgado Débora Beigt Valeria Outes Natalia I. Deligne Graham S. Leonard |
spellingShingle |
Josh L. Hayes Thomas M. Wilson Carol Stewart Gustavo Villarosa Pablo Salgado Débora Beigt Valeria Outes Natalia I. Deligne Graham S. Leonard Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communities Journal of Applied Volcanology Volcanic ash Volcanic hazard Disaster recovery Disaster waste management Disaster risk management |
author_facet |
Josh L. Hayes Thomas M. Wilson Carol Stewart Gustavo Villarosa Pablo Salgado Débora Beigt Valeria Outes Natalia I. Deligne Graham S. Leonard |
author_sort |
Josh L. Hayes |
title |
Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communities |
title_short |
Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communities |
title_full |
Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communities |
title_fullStr |
Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communities |
title_full_unstemmed |
Tephra clean-up after the 2015 eruption of Calbuco volcano, Chile: a quantitative geospatial assessment in four communities |
title_sort |
tephra clean-up after the 2015 eruption of calbuco volcano, chile: a quantitative geospatial assessment in four communities |
publisher |
BMC |
series |
Journal of Applied Volcanology |
issn |
2191-5040 |
publishDate |
2019-08-01 |
description |
Abstract Reliable methods for volcanic impact and risk assessments are essential. They provide constructive information to emergency and disaster managers, critical infrastructure providers, the insurance industry, and wider society. Post-eruption clean-up of tephra deposits is a prevalent and expensive (time and resource) activity which is often not planned for. Here, we present an overview of the clean-up efforts undertaken in four communities after the VEI 4 eruption of Calbuco volcano in 2015. We narratively reconstruct clean-up efforts in Ensenada (Chile), Junín de los Andes (Argentina), San Martín de los Andes (Argentina), and Villa La Angostura (Argentina) using semi-structured interviews, syn- and post-deposition photographs, pre- and post-event visual spectrum satellite imagery, and media reports. We compare these reconstructions with estimates based on a geospatial modelling approach adapted from Hayes et al. (Journal of Applied Volcanology 6:1; 2017). Specifically, we compare reported and geospatially derived estimates for volume of tephra removed, and clean-up operation duration. Our modelling approach performed well for Junín de los Andes but did not adequately capture volume and clean-up operation duration for the three remaining case study locations. We discuss several sources of uncertainty (including observational errors and natural variance of tephra deposit thickness), reported tephra removal volume estimates, clean-up methods, land use, and temporal evolution of clean-up operation demand. Our work demonstrates the utility of using simple geospatial data to develop assessments for tephra clean-up for use in response and recovery planning, and quantitative volcanic impact and risk assessments. |
topic |
Volcanic ash Volcanic hazard Disaster recovery Disaster waste management Disaster risk management |
url |
http://link.springer.com/article/10.1186/s13617-019-0087-3 |
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