this system includes a number of measurement stations 1 which are spatially distributed over a measurement area 2 each measurement station 1 is connected with a central unit 4 via a data transmission path 3 which can be implemented as a data transmission cable or as a wireless transmission path the measurement data collected by each measurement station 1 are accumulated in the central unit 4 and processed each measurement station 1 receives a timing reference signal z from a timing reference source 5 the timing reference source 5 can be for example a system of several gps satellites because the gps signal can be received worldwide the measurement stations 1 can be placed at any location on the earth surface fig1 indicates schematically a seismic center 6 from which a shockwave w or a seismic wave propagates in the ground the seismic center 6 is for example the epicenter of an earthquake the location of an explosion and the like the local seismic pattern generated by the shockwave w is recorded by each measurement station 1 and transmitted to the central unit 4 the geographic location of the seismic center 6 can be determined by analyzing the various local seismic patterns taking into account the propagation time differences of the shockwave w to prevent errors in determining the location the seismic center 6 the local seismic patterns determined by the various measurement stations 1 must be temporally correlated with each other with the highest possible precision the configuration of each.