%0 Journal Article
%@ 0037-1106
%A Kijko, Andrzej
%A Sellevoll, Markvard A.
%A Institute of Geophysics Polish Academy of Sciences KS. Janusza 64 01-452 Warsaw, Poland,
%A Seismological Observatory University of Bergen 5007 Bergen, Norway,
%D 1989
%F epos:1539
%I Seismological Society of America
%J Bulletin of the Seismological Society of America
%N 3
%P 645-654
%T Estimation of earthquake hazard parameters from incomplete data files. Part I. Utilization of extreme and complete catalogs with different threshold magnitudes
%U https://episodesplatform.eu/eprints/1539/
%V 79
%X The maximum likelihood estimation of earthquake hazard parameters (maximum regional magnitude, mmax, earthquake activity rate λ, and b parameter in the Gutenberg-Richter equation) is extended to the case of mixed data containing large historical events and recent complete observations. The method accepts variable quality of complete data in different parts of a catalog with different threshold magnitude values. As an illustration, the procedure is applied for the estimation of seismicity parameters in the area of Calabria and eastern Sicily.