Affiliation: | (1) Dept. of Geophysics, Charles University, Praha, Czech Republic;(2) International Institute for Earth, Marine and Environmental Sciences and Technologies, Trieste, Italy;(3) University of the Witwatersrand, Johannesburg, South Africa;(4) Institute of Geodesy and Geophysics, CNR - Gruppo Nazionale per la Difesa dai Terremoti, c/o University of Trieste, Trieste, Italy |