ANALYSIS OF RELATION BETWEEN INDUCED SEISMIC ACTIVITY AND SATELLITE DATA

Abstract

The main purpose of studies presented in the paper is the estimation of the statistical relation between seismic activity induced by underground mining and lineaments determined from satellite images in the Upper Silesian Coal Basin (USCB). The studies were performed on the basis of mining tremors of energy above 10 Joules within the years 1985-2004. The analysis of seismic activity showed the bi-modality of tremors energy distribution. Lowenergy tremors are connected directly with stress field caused by mining while highenergy tremors are caused by an overlay of two factors: mining and tectonic stress field. The lineaments observed on the satellite images are characteristic lines, which may be identified with lines that reflected neotectonic phenomena in the bedrock. The effect of such phenomena is transferred on younger sediments and on the surface. Some studies report that location of tremors is related with lineaments especially while crossing each other. In the paper, a relation of lineaments with epicenters of strong mining tremors in several regions of USCB is presented. The relation is proved by statistical parameters. In some regions of tremors location, geophysical anomalies: gravimetric and magnetic are also observed. The results of studies may have practical meaning. They could be applied in planning of land development as well as in planning of underground mining.