Exploration of deep sedimentary layers in Tacna city, southern Peru, using microtremors and earthquake data for estimation of local amplification

dc.contributoryamanaka@depe.titech.ac.jp
dc.creatorAguilar Bardales, Zenón
dc.creatorLázares La Rosa, Fernándo
dc.creatorCalderon, Diana
dc.creatorSaguchi, Kouichiro
dc.creatorChimoto, Kosuke
dc.creatorQuispe Gamero, Mileyvi Selene
dc.creatorYamanaka, Hiroaki
dc.creatorYamanaka, Hiroaki
dc.creatorQuispe Gamero, Mileyvi Selene
dc.creatorChimoto, Kosuke
dc.creatorSaguchi, Kouichiro
dc.creatorCalderon, Diana
dc.creatorLázares La Rosa, Fernándo
dc.creatorAguilar Bardales, Zenón
dc.date2017-07-03T21:28:59Z
dc.date2017-07-03T21:28:59Z
dc.date2015-08
dc.date.accessioned2022-12-06T19:41:59Z
dc.date.available2022-12-06T19:41:59Z
dc.identifier13834649
dc.identifierhttp://hdl.handle.net/20.500.14076/3570
dc.identifierJournal of Seismology
dc.identifier10.1007/s10950-015-9513-0
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5276770
dc.descriptionS-wave velocity profiles of sedimentary layers in Tacna, southern Peru, based on analysis of microtremor array data and earthquake records, have been determined for estimation of site amplification. We investigated vertical component of microtremors in temporary arrays at two sites in the city for Rayleigh wave phase velocity. A receiver function was also estimated from existing earthquake data at a strong motion station near one of the microtremor exploration sites. The phase velocity and the receiver function were jointly inverted to S-wave velocity profiles. The depths to the basement with an S-wave velocity of 2.8 km/s at the two sites are similar as about 1 km. The top soil at the site in a severely damaged area in the city had a lower S-wave velocity than that in a slightly damaged area during the 2001 southern Peru earthquake. We subsequently estimate site amplifications from the velocity profiles and find that amplification is large at periods from 0.2 to 0.8 s at the damaged area indicating possible reasons for the differences in the damage observed during the 2001 southern Peru earthquake.
dc.formatapplication/pdf
dc.languageeng
dc.publisherSpringer Netherlands
dc.relationhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84951877085&doi=10.1007%2fs10950-015-9513-0&partnerID=40&md5=09351bc57110a619440b555ee56b386a
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.sourceUniversidad Nacional de Ingeniería
dc.sourceRepositorio Institucional - UNI
dc.subjectS-wave profile
dc.subjectMicrotremors
dc.subjectRayleigh wave phase velocity
dc.subjectReceiver function
dc.subjectSite amplification
dc.subject2001 southern Peru earthquake
dc.titleExploration of deep sedimentary layers in Tacna city, southern Peru, using microtremors and earthquake data for estimation of local amplification
dc.typeArtículos de revistas


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