Early signs of geodynamic activity before the 2011–2012 El Hierro eruption
The potential relation between mantle plume dynamics, regional tectonics and eruptive activity in the Canary Islands has not been studied yet through the analysis of long-time series of geophysical observational data. The existence of highly reliable seismic and geodetic data has enabled us to study...
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ftcsic:oai:digital.csic.es:10261/142359 2024-02-11T10:06:39+01:00 Early signs of geodynamic activity before the 2011–2012 El Hierro eruption López, Carmen García-Cañada, Laura Martí Molist, Joan Domínguez Cerdeña, I. European Commission Ministerio de Economía y Competitividad (España) 2016-12 http://hdl.handle.net/10261/142359 https://doi.org/10.1016/j.jog.2016.12.005 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003329 en eng Elsevier #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/282759 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-58821-C2-1-R http://dx.doi.org/10.1016/j.jog.2016.12.005 Sí Journal of Geodynamics, 104: 1–14 (2017) 0264-3707 http://hdl.handle.net/10261/142359 doi:10.1016/j.jog.2016.12.005 1879-1670 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 none Canary Islands El Hierro eruption Mantle plume dynamics Tectonic activity Volcanic unrest artículo http://purl.org/coar/resource_type/c_6501 2016 ftcsic https://doi.org/10.1016/j.jog.2016.12.00510.13039/50110000078010.13039/501100003329 2024-01-16T10:19:42Z The potential relation between mantle plume dynamics, regional tectonics and eruptive activity in the Canary Islands has not been studied yet through the analysis of long-time series of geophysical observational data. The existence of highly reliable seismic and geodetic data has enabled us to study from 1996 to 2014 the geodynamic evolution of the North Atlantic Azores-Gibraltar region (including the NW African margin) and its relationship with recent volcanic activity in El Hierro (Canary Islands). We compiled a new and unified regional seismic catalog and used long time-series of digital 3D surface displacements recorded by permanent GPS stations in the region. A joint regional- and local-scale analysis based on these data enabled us to identify signs of anomalous tectonic activity from 2003 onwards, whose intensity increased in 2007 and finally accelerated three months before the onset of the volcanic eruption on El Hierro in October 2011. Activity included the occurrence of regional extension and an uplift process affecting the southern Iberian Peninsula, NW Africa, and the Canary Islands. We interpret these observations as early signs of the geodynamic activity, which led to El Hierro eruption and the subsequent episodes of magma intrusion. Results point to the significant contribution of the mantle plume dynamics (i.e. external forces) in this renewed volcanic activity in the Canary Islands and emphasize the role of mantle dynamics in controlling regional tectonics. © 2016 Elsevier Ltd This research was partially supported by the Instituto Geográfico Nacional (IGN), the European Commission (FP7 Theme: ENV.2011.1.3.3-1; Grant 282759: “VUELCO”) and the Spanish MINECO project CGL2014-58821-C2-1-R Peer reviewed Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Journal of Geodynamics 104 1 14 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Canary Islands El Hierro eruption Mantle plume dynamics Tectonic activity Volcanic unrest |
spellingShingle |
Canary Islands El Hierro eruption Mantle plume dynamics Tectonic activity Volcanic unrest López, Carmen García-Cañada, Laura Martí Molist, Joan Domínguez Cerdeña, I. Early signs of geodynamic activity before the 2011–2012 El Hierro eruption |
topic_facet |
Canary Islands El Hierro eruption Mantle plume dynamics Tectonic activity Volcanic unrest |
description |
The potential relation between mantle plume dynamics, regional tectonics and eruptive activity in the Canary Islands has not been studied yet through the analysis of long-time series of geophysical observational data. The existence of highly reliable seismic and geodetic data has enabled us to study from 1996 to 2014 the geodynamic evolution of the North Atlantic Azores-Gibraltar region (including the NW African margin) and its relationship with recent volcanic activity in El Hierro (Canary Islands). We compiled a new and unified regional seismic catalog and used long time-series of digital 3D surface displacements recorded by permanent GPS stations in the region. A joint regional- and local-scale analysis based on these data enabled us to identify signs of anomalous tectonic activity from 2003 onwards, whose intensity increased in 2007 and finally accelerated three months before the onset of the volcanic eruption on El Hierro in October 2011. Activity included the occurrence of regional extension and an uplift process affecting the southern Iberian Peninsula, NW Africa, and the Canary Islands. We interpret these observations as early signs of the geodynamic activity, which led to El Hierro eruption and the subsequent episodes of magma intrusion. Results point to the significant contribution of the mantle plume dynamics (i.e. external forces) in this renewed volcanic activity in the Canary Islands and emphasize the role of mantle dynamics in controlling regional tectonics. © 2016 Elsevier Ltd This research was partially supported by the Instituto Geográfico Nacional (IGN), the European Commission (FP7 Theme: ENV.2011.1.3.3-1; Grant 282759: “VUELCO”) and the Spanish MINECO project CGL2014-58821-C2-1-R Peer reviewed |
author2 |
European Commission Ministerio de Economía y Competitividad (España) |
format |
Article in Journal/Newspaper |
author |
López, Carmen García-Cañada, Laura Martí Molist, Joan Domínguez Cerdeña, I. |
author_facet |
López, Carmen García-Cañada, Laura Martí Molist, Joan Domínguez Cerdeña, I. |
author_sort |
López, Carmen |
title |
Early signs of geodynamic activity before the 2011–2012 El Hierro eruption |
title_short |
Early signs of geodynamic activity before the 2011–2012 El Hierro eruption |
title_full |
Early signs of geodynamic activity before the 2011–2012 El Hierro eruption |
title_fullStr |
Early signs of geodynamic activity before the 2011–2012 El Hierro eruption |
title_full_unstemmed |
Early signs of geodynamic activity before the 2011–2012 El Hierro eruption |
title_sort |
early signs of geodynamic activity before the 2011–2012 el hierro eruption |
publisher |
Elsevier |
publishDate |
2016 |
url |
http://hdl.handle.net/10261/142359 https://doi.org/10.1016/j.jog.2016.12.005 https://doi.org/10.13039/501100000780 https://doi.org/10.13039/501100003329 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/282759 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-58821-C2-1-R http://dx.doi.org/10.1016/j.jog.2016.12.005 Sí Journal of Geodynamics, 104: 1–14 (2017) 0264-3707 http://hdl.handle.net/10261/142359 doi:10.1016/j.jog.2016.12.005 1879-1670 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.jog.2016.12.00510.13039/50110000078010.13039/501100003329 |
container_title |
Journal of Geodynamics |
container_volume |
104 |
container_start_page |
1 |
op_container_end_page |
14 |
_version_ |
1790604484125130752 |