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Seismic Monitoring of Poland - Description and Results of Temporary Seismic Project with Mobile Seismic Network

Trojanowski J., Plesiewicz B., Wiszniowski J.

Acta Geophysica

2015

Vol. 63, no. 1

17--44

The paper describes a temporary seismic project aimed at developing the national database of natural seismic activity for seismic hazard assessment, officially called “Monitoring of Seismic Hazard of Territory of Poland” (MSHTP). Due to low seismicity of Poland, the project was focused on events of magnitude range 1-3 in selected regions in order to maximize the chance of recording any natural event. The project used mobile seismic stations and was divided into two stages. Five-year measurements brought over one hundred natural seismic events of magnitudes ML range 0.5-3.8. Most of them were located in the Podhale region in the Carpathians. Together with previously recorded events this made it possible to conduct a preliminary study on ground motion prediction equation for this region. Only one natural event, of magnitude ML = 3.8, was recorded outside the Carpathians in a surprising location in central-west Poland.