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Ground motion prediction of realistic earthquake sources using the ambient seismic field

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dc.creatorDenolle, M. A.spa
dc.creatorDunham, E. M.spa
dc.creatorPrieto, G. A.spa
dc.creatorBeroza, G. C.spa
dc.date.accessioned2020-08-19T14:43:52Z
dc.date.available2020-08-19T14:43:52Z
dc.date.created2013-05-06spa
dc.description.abstractPredicting accurate ground motion is critical for earthquake hazard analysis, particularly in situations where sedimentary basins trap and amplify seismic waves. We exploit the information carried by the ambient seismic field to extract surface?wave Green's functions between seismic stations and to predict long?period ground motion from earthquakes. To do so, we modify the surface impulse response to correct for the source depth and for the double?couple focal mechanism. These corrections are derived under the assumption that material properties in the immediate vicinity of the source depend only on depth. Using this local 1?D assumption, we solve the surface?wave eigenproblem and compute the fundamental?mode displacement eigenfunctions to express the surface?wave excitation at the source. We validate this technique, which we call the virtual earthquake approach, by comparing computed seismograms with earthquake waveforms from four moderate earthquakes that occur near broadband stations in southern California. The depth and mechanism corrections show clear improvements of the predicted ground motion relative to the surface impulse response.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1029/2012JB009603
dc.identifier.issnISSN: 2169-9313
dc.identifier.issnEISSN: 2169-9356
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/27785
dc.language.isoengspa
dc.publisherAmerican Geophysical Unionspa
dc.publisherJohn Wiley & Sonsspa
dc.relation.citationEndPage2118
dc.relation.citationIssueNo. 5
dc.relation.citationStartPage2102
dc.relation.citationTitleJournal of Geophysical Research: Solid Earth
dc.relation.citationVolumeVol. 118
dc.relation.ispartofJournal of Geophysical Research: Solid Earth, ISSN: 2169-9313;EISSN: 2169-9356, Vol.118, No.5 (May 2013); pp. 2102-2118spa
dc.relation.urihttps://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2012JB009603spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceJournal of Geophysical Research: Solid Earthspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordGround motion predictionspa
dc.subject.keywordAmbient noisespa
dc.subject.keywordSurface wavesspa
dc.subject.keywordRadiation patternspa
dc.subject.keywordGreen's functionsspa
dc.subject.keywordSpectral collocationspa
dc.titleGround motion prediction of realistic earthquake sources using the ambient seismic fieldspa
dc.title.TranslatedTitlePredicción del movimiento del suelo de fuentes de terremotos realistas utilizando el campo sísmico ambientalspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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