1 Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland. orlecka@igf.edu.pl.
2 Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland.
3 ACCCyfronet, AGH, Krakow, Poland.
4 Isterre, Grenoble Observatory, Grenoble, France.
5 Istituto Nazionale di Geofsica e Vulcanologia, Sezione di Bologna, Via Donato Creti 12, 40128, Bologna, Italy.
6 Université de Strasbourg, CNRS, IPGS-UMR7516, Strasbourg, France.
7 Keele University, Keele, UK.
8 Luleå University of Technology, Luleå, Sweden.
9 Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Section 4.2: Geomechanics and Scientifc Drilling, Telegrafenberg, 14473, Potsdam, Germany.
10 Istituto Nazionale di Geofsica e Vulcanologia, Sezione di Pisa. Via Cesare Battisti, 53 - 56125, Pisa, Italy.
11 Central Mining Institute, Katowice, Poland.
12 Polska Grupa Górnicza S.A, Katowice, Poland.
13 Oulu Mining School and Sodankylä Geophysical Observatory, University of Oulu, Oulu, Finland.
14 Institut national de l'environnement industriel et des risques, Nancy, France.
15 Institute of Geophysics, Academy of Sciences, CR, Prague, Czech Republic.