Abstract
The development of the new Italian strong-motion database ITACA (ITalian AC-celerometric Archive, http://itaca.mi.ingv.it) has been performed under the sponsorship of the National Department of Civil Protection (DPC) within Project S4, in the framework of DPC-INGV 2007–2009 research agreement. This work started from the alpha version of ITACA [11], where 2,182 3-component records from 1,004 earthquakes, mainly recorded by the National Accelerometric Network, RAN, operated by DPC, were processed and included in the database. Earthquake metadata, recording station information and reports on the available geological-geophysical information of 452 recording sites, corresponding to about 70% of the total, were also included. Subsequently, ITACA has been updated and has reached its final stage by the end of Project S4, around mid-2010, with additional features, improved information about recording stations, and updated records, including the Mw6.3 L’Aquila earthquake. All records were re-processed with respect to the alpha version [12], with a special care to preserve information about late-triggered events and to ensure compatibility of corrected records, i.e., that velocity and displacement traces obtained by the first and second integral of the corrected acceleration should not be affected by unrealistic trends. After a short introduction of ITACA and its most relevant features and statistics, this paper mainly deals with the newly adopted processing scheme, with reference to the problems encountered and the solutions that have been devised.
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Acknowledgments
The authors are indebted to the DPC referees, Antonella Gorini and Adriano De Sortis, and to all partners of Project S4 within the DPC-INGV Project S4, 2007–2009. The invitation by Sinan Akkar to attend and contribute to the 2nd Euro-Med iterranean meeting on Accelerometric Data Exchange and Archiving, Ankara, 10–12 Nov 2009, is gratefully acknowledged, as well as his very careful revision of the manuscript.
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Paolucci, R., Pacor, F., Puglia, R., Ameri, G., Cauzzi, C., Massa, M. (2011). Record Processing in ITACA, the New Italian Strong-Motion Database. In: Akkar, S., Gülkan, P., van Eck, T. (eds) Earthquake Data in Engineering Seismology. Geotechnical, Geological, and Earthquake Engineering, vol 14. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0152-6_8
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