1. Professor, Institute of Earthquake Engineering and Engineering Seismology, Univ. Ss. Cyril and Methodius, Skopje, R. Macedonia (corresponding author).
2. Research Scientist, Natural Resources Canada, Geological Survey of Canada, Quebec City, Canada G1K 9A9.
3. Professor, Institute of Earthquake Engineering and Engineering Seismology, Univ. Ss. Cyril and Methodius, Skopje, R. Macedonia.
4. Dam Safety Engineer, Axpo Power AG, Parkstrasse 23, CH-5401 Baden, Switzerland.