[en] This report is the final one in a research project at the National Defence Research Institute (FOA) in Sweden on the seismicity of the Baltic Shield. The project was financed by the Swedish Nuclear Power Inspectorate and the National Board for Spent Nuclear Fuel. A digital dense seismic network has been established and operated for 4.5 years and detailed source information of about 200 Swedish earthquakes has been achieved. These results have been earlier reported and published. In this final report some new results of general interest are given. These results concern the focal depths of the Swedish seismic activity and their relation to the present knowledge about stick-slip motion of granites for varying pressures and temperatures. The agreement is very good with most seismic activity in the range 7-18 km. One earthquake has been found to have a most likely focal depth just below the Moho discontinuity while no earthquake has been observed in the lowest 10 km of crust. The apparent crustal thickness of southern Sweden has been studied by use of the regional network recordings. The resutls are given as an apparent crustal thickness map covering couthern Sweden. The crustal thickness seems to vary between 32 and 48 km and indicates a possible block structure with block sizes of the order of 50-150 km. Finally recommendations for further activities aiming to better seismic risk estimates are given. (author)