The application of the double-difference ( DD) algorithm to the relocation of induced seismic events from the Upper Silesian Coal Basin is discussed. The method has been enhanced by combining it with the Monte Carlo sampling technique in order to evaluate relocation errors. Results of both synthetic tests and relocation of real events are shown. They are compared with estimates of the classical single-event (SE) appr oach obtained through the Monte Carlo sampling of the a posteriori probability. On the basis of this comparis on we have concluded that the double-difference approach yields better estimates of depth than the classical location technique., Łukasz Rudziński and Wojciech Dębski., and Obsahuje bibliografické odkazy