Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1311
AuthorsGasperini, P.* 
Ferrari, G.* 
TitleDeriving numerical estimates from descriptive information: the computation of earthquake parameters
Issue DateAug-2000
Series/Report no.43/4
URIhttp://hdl.handle.net/2122/1311
Keywordsmacroseismic epicenter
epicentral intensity
macroseismic magnitude
Subject Classification04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniques 
AbstractWe describe here how the origin time, the epicenter location, the epicentral intensity and the magnitude of the earthquakes included in the Catalogue of Strong Italian Earthquakes (CFTI3) have been determined from the documentary information available. As the literature lacks widely accepted formal definitions for these parameters in the case of macroseismic data, we developed ad hoc procedures that starting from generally shared qualitative statements give reasonable and stable results which can also be useful for statistical analysis. These procedures use all of the information available in the CFTI3 database as much as possible and make use of "robust" estimators in order to minimize the effects of anomalous data. The resulting parametric catalogue has been examined statistically for completeness showing that the great majority of the Italian earthquakes with moment magnitude larger that 5.5-6.0 of the last four centuries are correctly reported in CFTI3.
Appears in Collections:Annals of Geophysics

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