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Low-frequency earthquakes in the Mexican sweet spot

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dc.creatorFrank, William B.spa
dc.creatorShapiro, Nikolaï M.spa
dc.creatorKostoglodov, Vladimirspa
dc.creatorHusker, Allen L.spa
dc.creatorCampillo, Michelspa
dc.creatorPayero, Juan S.spa
dc.creatorPrieto, Germán A.spa
dc.date.accessioned2020-08-06T16:20:15Z
dc.date.available2020-08-06T16:20:15Z
dc.date.created2013-05-16spa
dc.description.abstractWe use data from the Meso?America Subduction Experiment to detect and locate low?frequency earthquakes (LFEs) in the Mexican subduction zone. We use visually?identified templates to perform a network waveform correlation search that produced ~17,000 robustly detected LFEs that form 15 distinct families. Stacking an LFE family's corresponding detections results in seismograms with high signal?to?noise ratios and clear P and S wave arrivals; we use these travel times to locate the sources. The resulting locations superpose a previously identified region of permanent non?volcanic tremor (NVT) activity. Husker et al. (2012) called this region a Sweet Spot, suggesting that the local conditions are adequate to continuously generate NVT. The LFE hypocenters have been located at a depth of 40–45?km in an area that is surrounding the upper slab?plate interface. We characterize their focal mechanisms by comparing their stacked seismograms to synthetic seismograms. This analysis reveals a common low?dipping focal mechanism.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1002/grl.50561
dc.identifier.issnISSN: 0094-8276
dc.identifier.issnESSN: 1944-8007
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/25932
dc.language.isoengspa
dc.publisherJohn Wiley and Sonsspa
dc.relation.citationEndPage2666
dc.relation.citationIssueNo. 11
dc.relation.citationStartPage2661
dc.relation.citationTitleGeophysical Research Letters
dc.relation.citationVolumeVol. 40
dc.relation.ispartofGeophysical Research Letters, ISSN: 0094-8276; ESSN: 1944-8007, Vol.40, No.11 (June, 2013); pp.2661-2666spa
dc.relation.urihttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/grl.50561spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceGeophysical Research Lettersspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordLow?frequencyspa
dc.subject.keywordEarthquakesspa
dc.subject.keywordTremorspa
dc.subject.keywordSlow?slipspa
dc.subject.keywordMexicospa
dc.subject.keywordSubductionspa
dc.titleLow-frequency earthquakes in the Mexican sweet spotspa
dc.title.TranslatedTitleTerremotos de baja frecuencia en el punto dulce mexicanospa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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