Earthquake catalogs provide basic parameters such as the occurrence time of earthquakes, their hypocenter coordinates, and magnitudes, often complemented by information about damage or other effects. They are useful for studies in seismotectonics, seismicity, earthquake physics and hazard analysis (Woessner and Wiemer 2005). The data contained in earthquake catalogs are usually based on seismic recordings from spatially, temporally, and often also instrumentally heterogeneous networks of seismometers. Older analog records of usually low resolution in time and amplitude were analyzed manually, in contrast to current high-resolution digital records that are analyzed either interactively or fully automated with the help...

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