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Short Note |
ich Novotn
í Zahradník
Department of Geophysics
Faculty of Mathematics and Physics
Charles University
V Hole
ovi
kách 2, 180 00 Prague 8, Czech Republic
(O.N., J.Z.)
Seismological Laboratory
Section of Applied Geophysics and Geology
University of Patras
Rio 261 10, Greece
(G.T.)
Manuscript received 31 July 2000.
Records of several earthquakes occurring in Turkey in 1999 obtained at broadband seismic stations in western Greece have been used to study the dispersion of surface waves, mainly Love waves. The observed group-velocity dispersion curves have been inverted into horizontally layered models of the Earth's crust by a modified method of the single-parameter variation. As compared with a previous model for the territory of Greece, the dispersion data require significantly lower velocities in the uppermost crust and smaller crustal thickness. In particular, the resulting model displays S-wave velocities between 1.3 and 2.4 km/sec in the upper 2 km and a crustal thickness of about 33 km.
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