Abstract
The last release of the strong-motion database ITACA (ITalian ACelerometric Archive v 2.1, http://itaca.mi.ingv.it) includes, to date, about 25,222 three-component accelerometric waveforms generated by 1365 earthquakes with magnitude between 3.0 and 6.9 and recorded by 1210 stations in the time frame 1972–2015. One of the main goals of ITACA is to improve the characterization of the recording sites from the geological and geophysical point of view and to provide seismic classification according to Italian seismic code. To this aim, metadata of recording stations are stored in three main thematic levels (topographic features, geological features and geophysical measurements) useful for a large variety of applications in engineering seismology or earthquake engineering. In particular, 206 recording stations have been characterized by quantitative measurements of velocity profiles, conducted through different techniques (active and/or passive), and the VS,30 values are available in ITACA 2.1. Moreover, 357 horizontal to vertical spectral ratios of Fourier spectra of ambient noise and the value of the fundamental frequency are also accessible. All details about the stations contained in the ITACA database are described in specific reports.
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Acknowledgments
This work has been partially developed in the framework of S2 Project under the agreement between the Istituto Nazionale di Geofisica e Vulcanologia (INGV) and the Italian Civil Protection Department (DPC), although this paper does not necessarily represent DPC official opinion and policies. The Authors are grateful to Francesca Pacor for supporting and encouraging in the developing of this paper. S2-Task2 Working Group (S2 Project, Task 2 Working Group. Deliverable D2.1: Site-specific characterization of selected ITACA stations, https://goo.gl/eFfv91) is also acknowledged for the geophysical surveys carried out during the project; these investigations are fully described in S2 reports linked to the stations monographies on the ITACA web-page (see Appendix B of the D2.1, https://goo.gl/eFfv91).
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Felicetta, C., D’Amico, M., Lanzano, G. et al. Site characterization of Italian accelerometric stations. Bull Earthquake Eng 15, 2329–2348 (2017). https://doi.org/10.1007/s10518-016-9942-3
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DOI: https://doi.org/10.1007/s10518-016-9942-3