caa a22 4500 477048013 CHVBK 20180405111335.0 cr unu---uuuuu 170330e19960701xx s 000 0 eng 10.1007/BF00877479 doi (NATIONALLICENCE)springer-10.1007/BF00877479 Tectonic analysis of mine tremor mechanisms from the Upper Silesian Coal Basin [Elektronische Daten] [Grzegorz Sagan, Lesław Teper, Waclaw Zuberek] Fault network of the Upper Silesian Coal Basin (USCB) is built of sets of strike-slip, oblique-slip and dip-slip faults. It is a typical product of force couple which acts evenly with the parallel of latitude, causing horizontal and anti-clockwise movement of rock-mass. Earlier research of focal mechanisms of mine tremors, using a standard fault plane solution, has shown that some events are related to tectonic directions in main structural units of the USCB. An attempt was undertaken to analyze the records of mine tremors from the period 1992-1994 in the selected coal fields. The digital records of about 200 mine tremors with energy larger than 1×104 J (M L >1.23) were analyzed with SMT software for seismic moment tensor inversion. The decomposition of seismic moment tensor of mine tremors was segmented into isotropic (I) part, compensated linear vector dipole (CLVD) part and double-couple (DC) part. The DC part is prevalent (up to 70%) in the majority of quakes from the central region of the USCB. A group of mine tremors with large I element (up to 50%) can also be observed. The spatial orientation of the fault and auxiliary planes were obtained from the computations for the seismic moment DC part. Study of the DC part of the seismic moment tensor made it possible for us to separate the group of events which might be acknowledged to have their origin in unstable energy release on surfaces of faults forming a regional structural pattern. The possible influence of the Cainozoic tectonic history of the USCB on the recent shape of stress field is discussed. Birkhäuser Verlag, 1996 Mining induced seismicity nationallicence seismic moment tensor nationallicence focal mechanism nationallicence Upper Silesia nationallicence fault tectonics nationallicence Sagan Grzegorz Faculty of Earth Sciences, Silesian University, ul. Bedzinska 60, 41-200, Sosnowiec, Poland aut Teper Lesław Faculty of Earth Sciences, Silesian University, ul. Bedzinska 60, 41-200, Sosnowiec, Poland aut Zuberek Waclaw Faculty of Earth Sciences, Silesian University, ul. Bedzinska 60, 41-200, Sosnowiec, Poland aut pure and applied geophysics Birkhäuser-Verlag 147/2(1996-07-01), 217-238 0033-4553 147:2<217 1996 147 24 https://doi.org/10.1007/BF00877479 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00877479 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sagan Grzegorz Faculty of Earth Sciences, Silesian University, ul. Bedzinska 60, 41-200, Sosnowiec, Poland aut NATIONALLICENCE 700 1- Teper Lesław Faculty of Earth Sciences, Silesian University, ul. Bedzinska 60, 41-200, Sosnowiec, Poland aut NATIONALLICENCE 700 1- Zuberek Waclaw Faculty of Earth Sciences, Silesian University, ul. Bedzinska 60, 41-200, Sosnowiec, Poland aut NATIONALLICENCE 773 0- pure and applied geophysics Birkhäuser-Verlag 147/2(1996-07-01), 217-238 0033-4553 147:2<217 1996 147 24 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer