NDLI: Extensive characterization of Italian accelerometric stations from single-station ambient-vibration measurements

Content Provider	Springer Nature Link
Author	Puglia, Rodolfo Albarello, Dario Gorini, Antonella Luzi, Lucia Marcucci, Sandro Pacor, Francesca
Copyright Year	2011
Abstract	This paper describes the analyses of the single-station ambient-vibration measurements performed on the Italian accelerometric network to detect site resonance phenomena potentially affecting earthquake recordings. The use of low cost, high quality microtremor measurement can be helpful to discriminate among soil classes, since several classification schemes based on resonance frequencies were proposed in the last decades. Operatively, in the framework of the Italian Strong Motion Database project (DPC-INGV 2007–2009 S4; http://esse4.mi.ingv.it ), soil resonance frequencies have been evaluated from more than 200 ambient vibration measurements in correspondence of accelerometric stations included in ITACA ( http://itaca.mi.ingv.it/ItacaNet/ ). The noise recordings have been analyzed using the same numerical protocol in order to standardize the results. Particular attention has been paid to evaluate the quality of measurements and to develop an on-purpose mathematical tool to automatically estimate the peaks in the horizontal-to-vertical spectral ratio (HVSR) curve. The reliability of the resonance frequencies from HVSR has been tested by comparing estimates provided by independent methods (modeling or earthquake recordings). The test confirmed the reliability of the microtremor HVSR for assessing the resonance frequencies of the examined sites.
Starting Page	1821
Ending Page	1838
Page Count	18
File Format	PDF
ISSN	1570761X
Journal	Bulletin of Earthquake Engineering
Volume Number	9
Issue Number	6
e-ISSN	15731456
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-08-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	HVSR Ambient vibration measurements Strong motion database Geophysics/Geodesy Hydrogeology Civil Engineering Structural Geology Environmental Engineering/Biotechnology Geotechnical Engineering & Applied Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Building and Construction Geophysics Geotechnical Engineering and Engineering Geology Civil and Structural Engineering

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