@article{epos1539, volume = {79}, number = {3}, month = {June}, author = {Andrzej Kijko and Markvard A. Sellevoll}, title = {Estimation of earthquake hazard parameters from incomplete data files. Part I. Utilization of extreme and complete catalogs with different threshold magnitudes}, publisher = {Seismological Society of America}, year = {1989}, journal = {Bulletin of the Seismological Society of America}, pages = {645--654}, url = {https://episodesplatform.eu/eprints/1539/}, abstract = {The maximum likelihood estimation of earthquake hazard parameters (maximum regional magnitude, mmax, earthquake activity rate {\ensuremath{\lambda}}, 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.} }