Results 171 to 180 of about 2,384 (210)
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Arabian Journal of Geosciences, 2020
Rabigh city located along the coastal plain of the Red Sea in western Saudi Arabia is economically significant. This pioneering study assesses the site characterization of Rabigh city based on integrated geological, geotechnical, and seismological data.
Abdullah M. Alamri +4 more
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Rabigh city located along the coastal plain of the Red Sea in western Saudi Arabia is economically significant. This pioneering study assesses the site characterization of Rabigh city based on integrated geological, geotechnical, and seismological data.
Abdullah M. Alamri +4 more
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HVSR, Amplifications and ESAC: Some Clarifications
2020This chapter discusses some points regarding two classical passive techniques more and more popular in seismic micro-zonation studies: the Horizontal-to-Vertical Spectral Ratio (HVSR) and the ESAC (Extended Spatial AutoCorrelation), a sort of “generalized” SPAC (SPatial AutoCorrelation).
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Seismostratigraphic Modeling Using Constrained HVSR Data
Proceedings, 2017An application of HVSR inversion is presented in order to verify the effectiveness of this technique for purposes of reconstruction of the buried geological setting where stratigraphic constraints are available. Specifically, the reconstruction of the stratigraphy in the studied area has been obtained by a seismic-stratigraphic three-dimensional ...
R. Martorana +4 more
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IMPROVING THE QUALITY OF HVSR REGRESSION EQUATIONS
Geological Society of America Abstracts with Programs, 2022Carole Johnson +3 more
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Analysis and Modeling of HVSR in the Presence of a Velocity Inversion: The Case of Venosa, Italy
Bulletin of the Seismological Society of America, 2005The aim of this work is to check the stability of the horizontal-to-vertical spectral ratios (HVSRs) calculated at the Venosa station site (Italy). This site lies over a layer of anthropogenic fill (4 m thick), a rigid layer of conglomerates (15 m thick), and a thick layer of clays (about 300 m thick) above the seismic bedrock.
Di Giacomo D +4 more
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HVSR Technique Improvement Using Redundant Wavelet Transform
2009In this study we demonstrate the use of Wavelet Transform (WT) as all improvement tool for the horizontal to vertical spectral ratio (HVSR) technique. Since the use of non-stationary transients in microtremor signals remains an open question we investigate the effect of long duration undetectable (by amplitude thresholding methods) transients in HVSR ...
Filippos Vallianatos, George Hloupis
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SESIMIC SITE CHARACTERIZATION BY HVSR APPROACH
The surface seismic methods represent non-invasive, widely accepted geophysical methods for near-surface characterization and evaluation of the local soil conditions which have significant influence on the site response during an earthquake. In this study particular attention was paid to the use of the single station microtremor Horizontal-to-Verticalopenaire +1 more source
Combined Analysis of Ambient Vibration HVSR and Active MASW Method
Proceedings, 2014The well-known non-uniqueness inversion problems of dispersion curves as well as the reduced resolution at higher depths could be improved by performing a combined analysis of data sets of different types. In this study, Nakamura’s technique or HVSR technique was applied to several ambient vibration recordings performed at the surface of alluvium ...
F.M. Gouveia, I.F. Lopes, R.C. Gomes
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HVSR as a versatile tool for subsurface investigation
2022Rajib Biswas +2 more
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Consistency of earthquake and microtremor HVSRs derived for California sites
2021Frequency-dependent horizontal-to-vertical spectral ratios (HVSRs) of three-component recordings provide information on site resonant frequencies, which are potentially useful for predicting site response. We compute HVSRs from Fourier amplitude spectra (FAS) using a relational database for site data mainly in California. We investigate the consistency
Wang P. +5 more
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