Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/10215
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dc.contributor.authorallDíaz-Moreno, A.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spainen
dc.contributor.authorallIbáñez, J. M.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.authorallDe Angelis, S.; School of Environmental Sciences, University of Liverpool, Liverpool, UKen
dc.contributor.authorallGarcía-Yeguas, A.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.authorallPrudencio, J.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.authorallMorales, J.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.authorallTuvè, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italiaen
dc.contributor.authorallGarcía, L.; Departamento de Teoría de la Señal y la Comunicación, Universidad de Granada, Granada, Spainen
dc.date.accessioned2016-02-22T14:36:52Zen
dc.date.available2016-02-22T14:36:52Zen
dc.date.issued2015-10-31en
dc.identifier.urihttp://hdl.handle.net/2122/10215en
dc.description.abstractIn thismanuscript we present a new interpretation of the seismic series that accompanied eruptive activity off the coast of El Hierro, Canary Islands, during 2011–2013. We estimated temporal variations of the Gutenberg-Richter b value throughout the period of analysis, and performed high-precision relocations of the preeruptive and syneruptive seismicity using a realistic 3-D velocity model. Our results suggest that eruptive activity and the accompanying seismicity were caused by repeated injections of magma from the mantle into the lower crust. These magma pulses occurred within a small and well-defined volume resulting in the emplacement of fresh magma along the crust-mantle boundary underneath El Hierro. We analyzed the distribution of earthquake hypocenters in time and space in order to assess seismic diffusivity in the lower crust. Our results suggest that very high earthquake rates underneath El Hierro represent the response of a stable lower crust to stress perturbations with pulsatory character, linked to the injection of magma from the mantle. Magma input from depth caused large stress perturbations to propagate into the lower crust generating energetic seismic swarms. The absence of any preferential alignment in the spatial pattern of seismicity reinforces our hypothesis that stress perturbation and related seismicity, had diffusive character. We conclude that the temporal and spatial evolution of seismicity was neither tracking the path of magma migration nor it defines the boundaries of magma storage volumes such as a midcrustal sill. Our conceptual model considers pulsatorymagma injection fromthe uppermantle and its propagation along the Moho.We suggest, within this framework, that the spatial and temporal distributions of earthquake hypocenters reflect hydraulic fracturing processes associated with stress propagation due to magma movement.en
dc.language.isoEnglishen
dc.publisher.nameAmerican Geophysical Unionen
dc.relation.ispartofJournal of geophysical research - solid earthen
dc.relation.ispartofseries/120 (2015)en
dc.subjectb value, relocation, Hydraulic fracturing, Magma influxen
dc.titleSeismic hydraulic fracture migration originated by successive deep magma pulses: The 2011–2013 seismic series associated to the volcanic activity of El Hierro Islanden
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber7749–7770en
dc.subject.INGV05. General::05.02. Data dissemination::05.02.99. General or miscellaneousen
dc.identifier.doi10.1002/2015JB012249en
dc.description.obiettivoSpecifico1T. Geodinamica e interno della Terraen
dc.description.journalTypeJCR Journalen
dc.description.fulltextrestricteden
dc.relation.issn0148-0227en
dc.contributor.authorDíaz-Moreno, A.en
dc.contributor.authorIbáñez, J. M.en
dc.contributor.authorDe Angelis, S.en
dc.contributor.authorGarcía-Yeguas, A.en
dc.contributor.authorPrudencio, J.en
dc.contributor.authorMorales, J.en
dc.contributor.authorTuvè, T.en
dc.contributor.authorGarcía, L.en
dc.contributor.departmentInstituto Andaluz de Geofísica, University of Granada, Granada, Spainen
dc.contributor.departmentInstituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.departmentSchool of Environmental Sciences, University of Liverpool, Liverpool, UKen
dc.contributor.departmentInstituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.departmentInstituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.departmentInstituto Andaluz de Geofísica, University of Granada, Granada, Spain,en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptUniversity of Liverpool, UK-
crisitem.author.deptInstituto Andaluz de Geofísica, University of Granada, Granada, Spain,-
crisitem.author.deptUniversity of Liverpool, UK-
crisitem.author.deptInstituto Andaluz de Geofísica, Universidad de Granada, Granada, Spain-
crisitem.author.deptInstituto Andaluz de Geofisica, Universidad de Granada-
crisitem.author.deptInstituto Andaluz de Geofísica, Universidad de Granada, Spain-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia-
crisitem.author.orcid0000-0002-9846-8781-
crisitem.author.orcid0000-0003-2636-3056-
crisitem.author.orcid0000-0003-1755-3771-
crisitem.author.orcid0000-0003-4111-8008-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent05. General-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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