Title
Estimation of deep shear-wave velocity profiles in Lima, Peru, using seismometers arrays
Date Issued
01 January 2013
Access level
open access
Resource Type
journal article
Publisher(s)
Fuji Technology Press
Abstract
The estimation of the shear-wave velocity profile in Lima, Peru, was originally performed through surface wave observation in microtremor arrays. In the observation of these surface waves, a low signal problem for long periods was identified that resulted in a poorly done correlation between signals recorded by sensors and, consequently, in difficulty obtaining deep velocity profiles with good resolution. As an alternative, surface wave observation from seismic records was proposed. To confirm the feasibility of this methodology, seismometers were installed in an approximately circular configuration on the campus of the National University of Engineering in Lima. The procedures used to carry out analysis are similar to those used when analyzing microtremor arrays, with the exception that only the coda of seismic records is used for analysis. Results show that the dispersion curve obtained from seismometer arrays agree well with dispersion curve obtained from microtremor arrays and are predominant in a large period range. Finally, the estimated profile is verified using the observed H/V spectrum.
Start page
252
End page
258
Volume
8
Issue
2
Language
English
OCDE Knowledge area
Geotecnia
Ingeniería civil
Subjects
Scopus EID
2-s2.0-84874584537
Source
Journal of Disaster Research
ISSN of the container
18812473
Sources of information:
Directorio de Producción Científica
Scopus