GRSS - Górnośląska Regionalna Sieć Sejsmologiczna (Upper Silesian Regional Seismological Network) enables registration of seismic energy phenomena of E ³ 105 J from the area of about 2000 km2 (Mutke and Stec, 1997). These are also tremors that have not been registered by any mine seismological network. On the basis of the analysis of recorded seismograms, the data bank is worked out containing basic seismological parameters of rock mass tremors of the seismic energy of E ³ 105 J. The bank shall contain the following data: time of occurrence of dynamic phenomenon, tremor energy, magnitude, mine name, epicentre coordinates (Paszta, Udziela and Wierzchowska 1950 -1970, Mutke and Stec 1990-2009). The tremor catalogue from 1974-2009 contains approximately 70000 tremors of the energy of E ³ 105 J.
More informations: www.grss.gig.eu
