Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/6055
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dc.contributor.authorallPalo, M.; Universit´a degli Studio di Salerno, Dipartimento di Matematica e Informatica, Italyen
dc.contributor.authorallIbanez, J. M.; Instituto Andaluz de Geofısica, Universidad de Granada, Spain. 3Departamento de F´ısica Te´orica y del Cosmos, Universidad de Granada.en
dc.contributor.authorallCisneros, M.; Observatorio Vulcanologico, Universidad de Colima, Colima, Mexicoen
dc.contributor.authorallBreton, M.; Observatorio Vulcanologico, Universidad de Colima, Colima, Mexicoen
dc.contributor.authorallDel Pezzo, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
dc.contributor.authorallOcana, E.; Instituto Andaluz de Geof´ısica, Universidad de Granada, Spain.en
dc.contributor.authorallOrozco-Rojas, J.; Observatorio Vulcanol´ogico, Universidad de Colima, Colima, Mexicoen
dc.contributor.authorallPosadas, A. M.; Departamento de Fısica Aplicada, Universidad de Almerıa, Spainen
dc.date.accessioned2010-06-30T07:10:48Zen
dc.date.available2010-06-30T07:10:48Zen
dc.date.issued2009en
dc.identifier.urihttp://hdl.handle.net/2122/6055en
dc.description.abstractWe have investigated thewavefield properties of the seismic signals generated by the explosions of Volc´an de Colima (M´exico). We have analysed these properties to understand the initial mechanism that triggered the explosive events. Our study is focused on the direct waves coming from the crater area. Thus, we have analysed a set of moderate volcanic explosions at Volc´an de Colima that was recorded by a small aperture seismic array over two periods: October 2005 and April 2006. We can distinguish two types of explosions, Vulcanian and ash-free events. Both types of explosions share the same characteristics, that is a long-period signal (not related to any type of emission) before the arrival of high frequency phases, and a later high frequency signal directly related to ash or gas emission. We have applied the Zero Lag Cross Correlation technique to obtain backazimuth and apparent slowness of the incoming waves. We have also applied polarization analysis to the record of every detected volcanic explosion. By comparing the results of both of these analyses, we have been able to identify the dominant wave types that comprise the seismic wavefield and infer in time and space a possible primary source mechanism that would trigger the volcanic explosions. We have observed an apparent slowness variation of the first onset of the long-period (LP) signal with a possible upward migration of the source; the depth of the source has been identified at a range between 2.6 and 3.3 km below the crater, associated with the range of measured apparent velocities relative to the first onset of the LP signal.en
dc.language.isoEnglishen
dc.publisher.nameBlackwell Publishingen
dc.relation.ispartofGeophys. J. Int.en
dc.relation.ispartofseries/177(2009)en
dc.subjectExplosive volcanism;en
dc.subjectVolcano monitoring.en
dc.titleAnalysis of the seismic wavefield properties of volcanic explosions at Volc ´an de Colima,Mexico: insights into the source mechanismen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1383–1398en
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneousen
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismologyen
dc.identifier.doi10.1111/j.1365-246X.2009.04134.xen
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dc.description.obiettivoSpecifico3.1. Fisica dei terremotien
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorPalo, M.en
dc.contributor.authorIbanez, J. M.en
dc.contributor.authorCisneros, M.en
dc.contributor.authorBreton, M.en
dc.contributor.authorDel Pezzo, E.en
dc.contributor.authorOcana, E.en
dc.contributor.authorOrozco-Rojas, J.en
dc.contributor.authorPosadas, A. M.en
dc.contributor.departmentUniversit´a degli Studio di Salerno, Dipartimento di Matematica e Informatica, Italyen
dc.contributor.departmentInstituto Andaluz de Geofısica, Universidad de Granada, Spain. 3Departamento de F´ısica Te´orica y del Cosmos, Universidad de Granada.en
dc.contributor.departmentObservatorio Vulcanologico, Universidad de Colima, Colima, Mexicoen
dc.contributor.departmentObservatorio Vulcanologico, Universidad de Colima, Colima, Mexicoen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
dc.contributor.departmentInstituto Andaluz de Geof´ısica, Universidad de Granada, Spain.en
dc.contributor.departmentObservatorio Vulcanol´ogico, Universidad de Colima, Colima, Mexicoen
dc.contributor.departmentDepartamento de Fısica Aplicada, Universidad de Almerıa, Spainen
item.grantfulltextrestricted-
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.author.deptUniversity of Salerno-
crisitem.author.deptInstituto Andaluz de Geofísica, University of Granada, Granada, Spain,-
crisitem.author.deptObservatorio Vulcanologico, Universidad de Colima, Colima, Mexico-
crisitem.author.deptUniversidad de Colima, Observatorio Volcanológico, Colima, Mexico-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia-
crisitem.author.deptInstituto Andaluz de Geof´ısica, Universidad de Granada, Spain.-
crisitem.author.deptObservatorio Vulcanol´ogico, Universidad de Colima, Colima, Mexico-
crisitem.author.deptDepartamento De Quımica y Fısica, Canana de San Urbano, University of Almerıa, E-04071 Almerıa, Spain-
crisitem.author.orcid0000-0002-9846-8781-
crisitem.author.orcid0000-0002-6981-5967-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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