Publication Date:
2017-04-04
Description:
In the framework of ground-motion amplification analysis for southern
Italy, the main target of this study is to provide new constraints on onedimensional,
shallow-velocity profiles for a site in the San Fele area
near the city of Potenza (southern Italy) where a permanent Irpinia
Seismic Network (ISNet) seismic station is installed. Ambient noise
vibrations were recorded during a seismic survey in San Fele, and the
data acquired were used to define the shallow shear-wave velocity
profiles and thicknesses of the shallow soil layers, through analysis of
the dispersion characteristics of the surface waves. Single station and
array techniques were used to obtain robust results, which show
relatively flat curves of the H/V spectral ratios and variations in shearwave
velocities confined to the first 50 m in depth. On the basis of these
results for the San Fele site, the present study aims to delineate a
standard procedure that can be systematically applied to all of the other
ISNet stations to improve site characterization. This will allow more
accurate evaluation of peak ground-motion quantities (e.g. peak
ground acceleration, peak ground velocity) at rock sites for use in shakemap
analysis.
Description:
AMRA S.c. a r.l.
Description:
Published
Description:
59-68
Description:
3.1. Fisica dei terremoti
Description:
4.1. Metodologie sismologiche per l'ingegneria sismica
Description:
JCR Journal
Description:
open
Keywords:
Site effects
;
seismic noise
;
04. Solid Earth::04.02. Exploration geophysics::04.02.06. Seismic methods
;
04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis
;
04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniques
;
04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
;
05. General::05.01. Computational geophysics::05.01.01. Data processing
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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