Anatomy of a high-silica eruption as observed by a local seismic network: The June 2011 Puyehue-Cordón Caulle event (southern Andes, Chile)

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datacite.alternateIdentifier.citationSolid Earth, 14 (1), 87-69, 2023
datacite.alternateIdentifier.doi10.5194/se-14-69-2023
datacite.alternateIdentifier.issn1869-9529
datacite.creatorBasualto, Daniel
datacite.creatorTassara, Andrés
datacite.creatorLazo-Gil, Jonathan
datacite.creatorFranco-Marin, Luis Enrique
datacite.creatorCardona, Carlos
datacite.creatorSan Martín, Juan
datacite.creatorGil-Cruz, Fernando
datacite.creatorCalabi-Floddy, Marcela
datacite.creatorFarías, Cristian
datacite.date2023
datacite.rightsAcceso abierto
datacite.subjectData Handling
datacite.subjectDigital Storage
datacite.subjectSeismology
datacite.subjectSilica
datacite.subjectStructural Dynamics
datacite.subjectExplosive Eruption
datacite.subjectHigh Silicas
datacite.subjectHypocentre
datacite.subjectNatural Phenomenon
datacite.subjectNear Fields
datacite.subjectPuyehue
datacite.subjectRhyolitic Eruptions
datacite.subjectSeismic Networks
datacite.subjectVelocity Modeling
datacite.subjectVolcanic Complex
datacite.subjectVolcanoes
datacite.subjectFocal Mechanism
datacite.subjectGeodesy
datacite.subjectLava Flow
datacite.subjectNetwork Analysis
datacite.subjectSatellite Data
datacite.subjectSeismic Source
datacite.subjectSeismicity
datacite.subjectSilica
datacite.subjectVolcanic Earthquake
datacite.subjectVolcanic Eruption
datacite.subjectLos Rios [chile]
datacite.subjectPuyehue-cordon Caulle
datacite.subjectSouthern Volcanic Zone
datacite.titleAnatomy of a high-silica eruption as observed by a local seismic network: The June 2011 Puyehue-Cordón Caulle event (southern Andes, Chile)
dc.contributor.authorFARIAS VEGA, CRISTIAN ALEX
dc.description.abstractHigh-silica explosive eruptions are one of the most dangerous natural phenomena, yet it is unclear which processes are involved in this infrequent kind of event. We present the first systematic characterization of near-field seismicity associated with a large high-silica eruption analyzing data recorded before, during and after the 4 June 2011 rhyolitic eruption of Puyehue-Cordón Caulle Volcanic Complex (PCCVC). Results of a first-level data processing, developed by the Southern Andean Volcano Observatory (OVDAS) to monitor unrest and the evolution of the eruption, are complemented here with the relocation of hypocenters into a local 1D velocity model, the time series of the b value and the computation of the focal mechanism. This information allows us to define several phases before and after the onset of the eruption, describing details of the space-Time evolution of seismicity, defining and characterizing the seismic sources, and identifying the structural control of the magmatic intrusion and stress variations during the eruption. Our results illuminate several underlying processes, with emphasis on the possible role that basement structures had on the storage, transport and evacuation of magma. Integrating our results with previous findings based on satellite geodesy and petrology of erupted materials, we discuss general conceptual models regarding destabilization of structurally controlled acidic magmatic systems, the pass from unrest to eruption, and changes in eruptive style and waning phases of eruptions, with broader implications for monitoring and forecast of violent silicic eruptions. © 2023 Elsevier B.V., All rights reserved.
dc.description.ia_keyworderuption, high, silica, eruptions, processes, event, first
dc.formatPDF
dc.identifier.issn1869-9510
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/5352
dc.language.isoen
dc.publisherCopernicus Publications
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.sourceSolid Earth
dc.subject.ia_odsODS 11: Ciudades y comunidades sostenibles
dc.subject.ia_oecd1nCiencias Naturales
dc.subject.ia_oecd2nCiencias Físicas
dc.subject.ia_oecd3nCiencias de la Tierra y Medioambientales
dc.type.driverinfo:eu-repo/semantics/article
dc.type.driverhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.type.openaireinfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
oaire.citationEdition2023
oaire.citationEndPage87
oaire.citationIssue1
oaire.citationStartPage69
oaire.citationTitleSolid Earth
oaire.citationVolume14
oaire.fundingReferenceANID Postdoctorado 3200387
oaire.fundingReferenceANID FONDECYT 1151175
oaire.fundingReferenceANID FONDEF 19I10397
oaire.fundingReferenceANID Núcleo Milenio NCN19_167
oaire.fundingReferenceADAIN FRO2193
oaire.fundingReferenceUFRO Departamento de Ingeniería Civil
oaire.fundingReferenceGeoAraucanía (UFRO/UCT/UMayor)
oaire.licenseConditionObra bajo licencia Creative Commons Atribución 4.0 Internacional
oaire.licenseCondition.urihttps://creativecommons.org/licenses/by/4.0/
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
relation.isAuthorOfPublication5f4b56d8-91cd-46a3-bc83-c2fda5280b97
relation.isAuthorOfPublication.latestForDiscovery5f4b56d8-91cd-46a3-bc83-c2fda5280b97
uct.catalogadorjvu
uct.comunidadIngenieríaen_US
uct.departamentoDepartamento de Obras Civiles y Geología
uct.facultadFacultad de Ingeniería
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionScopus
uct.indizacionGeoRef
uct.indizacionDOAJ
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