Barbara Lolli

CPTI11, the 2011 version of the Parametric Catalogue of Italian Earthquakes

CPTI11 updates and improves the 2004 version of CPTI with respect to background information and structure. It is based on updated macroseismic (DBMI11; Locati et al., 2011) and instrumental databases; it contains records of foreshocks and aftershocks; for some offshore events, macroseismic earthquake parameters have been determined by means of the method by Bakun and Wentworth (1997); when both macroseismic and instrumental parameters are available, the two determinations and a default one are provided (in this case, the epicentre is selected according to expert judgement, while Mw is obtained as a weighted mean); for some events, whose macroseismic data are poor, no macroseismic parameters have been determined. CPTI11 does not include the results of some methodological developments performed in the frame of the EC project “SHARE”. It does not consider the information background provided by: Molin et al. (2008); Camassi et al. (2011); recent studies on individual earthquakes; ECOS 2009 (Faeh et al., 2011) and SisFrance, 2010, yet, which will be considered in the next version. The area covered by CPTI11 is slightly reduced with respect to the one of CPTI04 (Fig. 1). The catalogue is composed of two sections: the main one (1000-2006) and the “Etna” earthquakes, for which a specific calibration is used for determining earthquake parameters. Appendix 4 supplies the list of the events which were included in CPTI04 but not in CPTI11 and the relevant explanation.

Catalogo PArametrico dei Terremoti Italiani, versione CPTI11

The Italian Parametric Earthquake Catalogue (CPTI, Catalogo Parametrico dei Terremoti Italiani) represents the most extensive and reliable source of parameters for earthquakes in Italy and surrounding areas. CPTI15 is the fourth release of the CPTI series, the first dating back to 1999, and provides the most advanced and updated sets of macroseismic and instrumental data and parameters, for Italian earthquakes with maximum intensity I ≥ 5 or magnitude Mw ≥ 4.0 in the period 1000-2014. The catalogue lists 4584 events, 70% of which are based on the macroseismic datapoints provided by the Italian Macroseismic Database DBMI15. If available, both macroseismic and instrumental parameters are provided, together with a set of “preferred ones”, which consist of a selection between the macroseismic and the instrumental epicentres, and the weighted average of the macroseismic and instrumental magnitudes.