Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/10215
DC Field | Value | Language |
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dc.contributor.authorall | Díaz-Moreno, A.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain | en |
dc.contributor.authorall | Ibáñez, J. M.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.authorall | De Angelis, S.; School of Environmental Sciences, University of Liverpool, Liverpool, UK | en |
dc.contributor.authorall | García-Yeguas, A.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.authorall | Prudencio, J.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.authorall | Morales, J.; Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.authorall | Tuvè, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia | en |
dc.contributor.authorall | García, L.; Departamento de Teoría de la Señal y la Comunicación, Universidad de Granada, Granada, Spain | en |
dc.date.accessioned | 2016-02-22T14:36:52Z | en |
dc.date.available | 2016-02-22T14:36:52Z | en |
dc.date.issued | 2015-10-31 | en |
dc.identifier.uri | http://hdl.handle.net/2122/10215 | en |
dc.description.abstract | In 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.iso | English | en |
dc.publisher.name | American Geophysical Union | en |
dc.relation.ispartof | Journal of geophysical research - solid earth | en |
dc.relation.ispartofseries | /120 (2015) | en |
dc.subject | b value, relocation, Hydraulic fracturing, Magma influx | en |
dc.title | Seismic hydraulic fracture migration originated by successive deep magma pulses: The 2011–2013 seismic series associated to the volcanic activity of El Hierro Island | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 7749–7770 | en |
dc.subject.INGV | 05. General::05.02. Data dissemination::05.02.99. General or miscellaneous | en |
dc.identifier.doi | 10.1002/2015JB012249 | en |
dc.description.obiettivoSpecifico | 1T. Geodinamica e interno della Terra | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 0148-0227 | en |
dc.contributor.author | Díaz-Moreno, A. | en |
dc.contributor.author | Ibáñez, J. M. | en |
dc.contributor.author | De Angelis, S. | en |
dc.contributor.author | García-Yeguas, A. | en |
dc.contributor.author | Prudencio, J. | en |
dc.contributor.author | Morales, J. | en |
dc.contributor.author | Tuvè, T. | en |
dc.contributor.author | García, L. | en |
dc.contributor.department | Instituto Andaluz de Geofísica, University of Granada, Granada, Spain | en |
dc.contributor.department | Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.department | School of Environmental Sciences, University of Liverpool, Liverpool, UK | en |
dc.contributor.department | Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.department | Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.department | Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | University of Liverpool, UK | - |
crisitem.author.dept | Instituto Andaluz de Geofísica, University of Granada, Granada, Spain, | - |
crisitem.author.dept | University of Liverpool, UK | - |
crisitem.author.dept | Instituto Andaluz de Geofísica, Universidad de Granada, Granada, Spain | - |
crisitem.author.dept | Instituto Andaluz de Geofisica, Universidad de Granada | - |
crisitem.author.dept | Instituto Andaluz de Geofísica, Universidad de Granada, Spain | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.orcid | 0000-0002-9846-8781 | - |
crisitem.author.orcid | 0000-0003-2636-3056 | - |
crisitem.author.orcid | 0000-0003-1755-3771 | - |
crisitem.author.orcid | 0000-0003-4111-8008 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 05. General | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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Díaz-Moreno et al_2015_JGR.pdf | 3.34 MB | Adobe PDF |
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