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Radiated seismic energy from coda measurements and no scaling in apparent stress with seismic moment

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dc.creatorBaltay, Annemariespa
dc.creatorPrieto, German A.
dc.creatorBeroza, Gregory C.spa
dc.date.accessioned2020-08-19T14:40:21Z
dc.date.available2020-08-19T14:40:21Z
dc.date.created2010-08-31spa
dc.description.abstractThe seismic coda consists of scattered waves that leave the earthquake source in a variety of directions. The averaging of source radiation that results leads to stable ground motion spectra that we use as the basis for a robust measurement of radiated wave energy. We apply an empirical Green's function (EGF) method to the seismic coda in order to investigate scaling of the radiated seismic energy. We correct for path effects in the spectra of earthquakes by using a stack of closely located, small earthquakes as an EGF. We apply this approach to four earthquake sequences in western North America that span a magnitude range from M w 3.0–M w 7.1. Our estimates of scaled energy are consistent with independent measurements, where available. We find no dependence in individual seismic energy estimates on source?station distance, which validates the EGF approximation. We find that a constant scaled energy of 3.5 × 10?5 provides a reasonable fit to the data, with no dependence of the scaled energy on seismic moment.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1029/2009JB006736
dc.identifier.issnISSN: 2169-9313
dc.identifier.issnEISSN: 2169-9356
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/26837
dc.language.isoengspa
dc.publisherAmerican Geophysical Unionspa
dc.publisherJohn Wiley & Sonsspa
dc.relation.citationIssueNo. B8
dc.relation.citationTitleJournal of Geophysical Research: Solid Earth
dc.relation.citationVolumeVol. 115
dc.relation.ispartofJournal of Geophysical Research: Solid Earth, ISSN: 2169-9313;EISSN: 2169-9356, Vol.115, No.B8 (2010); 12 pp.spa
dc.relation.urihttps://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2009JB006736spa
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.keywordApparent stress scalingspa
dc.subject.keywordCoda source spectraspa
dc.subject.keywordRadiated energyspa
dc.titleRadiated seismic energy from coda measurements and no scaling in apparent stress with seismic momentspa
dc.title.TranslatedTitleEnergía sísmica irradiada a partir de mediciones de coda y sin escala en la tensión aparente con el momento sísmicospa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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