Affiliation: | Department of Geology, Tallahassee, FL 32306, USA;Institute of Geophysics, State Seismological Bureau, Beijing 100083, China;Katedra Teoretickej Fyziky a Geofyz., P. J. Šafarik University, 040 00 KoŠice, Czechoslovakia;Institut für Geophysik der Universität Göttingen, 3400 Göttingen, FRG |