University of Patras, Seismological Laboratory (UPSL) started its operation in 1990, under the Geology Department of University of Patras. UPSL is now a member of the recently established Hellenic Unified Seismic Network (HUSN) and has the responsibility of earthquake monitoring in central-western Greece. The main research interests of UPSL are the development and application of seismic methods, seismicity monitoring, wave propagation methods, investigation of site effects, development of new microzonation methods, seismic hazard studies, seismic scenarios and study of source and crust properties. UPSL has been involved in many research projects related to its scientific interests.