TY  - JOUR
ID  - epos1881
UR  - https://episodesplatform.eu/eprints/1881/
IS  - 1
A1  - Lizurek, Grzegorz
N2  - Tectonic seismicity in Poland is sparse. The biggest event was located near My?lenice in 17th century of magnitude 5.6. On the other hand, the anthropogenic seismicity is one of the highest in Europe related, for example, to underground mining in Upper Silesian Coal Basin (USCB) and Legnica G?ogów Copper District (LGCD), open pit mining in ?Be?chatów? brown coal mine and reservoir impoundment of Czorsztyn artificial lake. The level of seismic activity in these areas varies from tens to thousands of events per year. Focal mechanism and full moment tensor (MT) decomposition allow for deeper understanding of the seismogenic process leading to tectonic, induced, and triggered seismic events. The non-DC components of moment tensors are considered as an indicator of the induced seismicity. In this work, the MT inversion and decomposition is proved to be a robust tool for unveiling collapse-type events as well as the other induced events in Polish underground mining areas. The robustness and limitations of the presented method is exemplified by synthetic tests and by analyzing weak tectonic earthquakes. The spurious non-DC components of full MT solutions due to the noise and poor focal coverage are discussed. The results of the MT inversions of the human-related and tectonic earthquakes from Poland indicate this method as a useful part of the tectonic and anthropogenic seismicity discrimination workflow.
VL  - 174
TI  - Full Moment Tensor Inversion as a Practical Tool in Case of Discrimination of Tectonic and Anthropogenic Seismicity in Poland
AV  - none
EP  - 212
Y1  - 2017/01//
PB  - Springer Verlag
JF  - Pure and Applied Geophysics
KW  - Anthropogenic seismicity
KW  -  moment tensor
KW  -  focal mechanism
KW  -  induced seismicity
KW  -  intraplate seismicity
SN  - 0033-4553
SP  - 197
ER  -