Estimation of S-wave velocity profiles at Lima city, Peru using microtremor arrays

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dc.contributor.authorQuispe, Selene
dc.contributor.authorChimoto, Kosuke
dc.contributor.authorYamanaka, Hiroaki
dc.contributor.authorTavera, Hernando
dc.contributor.authorLazares, Fernando
dc.contributor.authorAguilar, Zenon
dc.coverage.spatialLima
dc.coverage.spatialPerú
dc.date.accessioned2018-09-12T16:47:17Z
dc.date.available2018-09-12T16:47:17Z
dc.date.issued2014
dc.description.abstractMicrotremor exploration was performed around seismic recording stations at five sites in Lima city, Peru in order to know the site amplification at these sites. The Spatial Autocorrelation (SPAC) method was applied to determine the observed phase velocity dispersion curve, which was subsequently inverted in order to estimate the 1-D S-wave velocity structure. From these results, the theoretical amplification factor was calculated to evaluate the site effect at each site. S-wave velocity profiles at alluvial gravel sites have S-wave velocities ranging from ∼500 to ∼1500 m/s which gradually increase with depth, while Vs profiles at sites located on fine alluvial material such as sand and silt have Swave velocities that vary between ∼200 and ∼500 m/s. The site responses of all Vs profiles show relatively high amplification levels at frequencies larger than 3 Hz. The average transfer function was calculated to make a comparison with values within the existing amplification map of Lima city. These calculations agreed with the proposed site amplification ranges.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationQuispe, S., Chimoto, K., Yamanaka, H., Tavera, H., Lazares, F., & Aguilar, Z. (2014). Estimation of S-wave velocity profiles at Lima city, Peru using microtremor arrays.==$Journal of Disaster Research, 9$==(6), 931-938. https://doi.org/10.20965/jdr.2014.p0931es_ES
dc.identifier.doihttps://doi.org/10.20965/jdr.2014.p0931es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalJournal of Disaster Researches_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/2942
dc.language.isoenges_ES
dc.publisherFuji Technology Presses_ES
dc.relation.ispartofurn:issn:1881-2473
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttps://creativecommons.org/licences/by/4.0/es_ES
dc.subjectMicrotremorses_ES
dc.subjectS-wave velocity profileses_ES
dc.subjectSite responsees_ES
dc.subjectAV s10es_ES
dc.subjectLima cityes_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.04es_ES
dc.titleEstimation of S-wave velocity profiles at Lima city, Peru using microtremor arrayses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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