Gok, R., Turkelli, N., Sandvol, E., Seber, D., and Barazangi,
Regional wave propagation in Turkey and surrounding regions
Geophysical Research Letters, 27(3), 2000.
Digital and analog seismic waveform data collected
by 34 stations in and around Turkey provided excellent ray coverage for a detailed
attenuation study of regional shear waves (Sn and Lg). Over 2000 seismograms within
a distance range of 15° were visually inspected and the quality of Sn and
Lg phases categorized into three different classes: efficient, inefficient, or
not present. Our results show that Sn and Lg propagation is mostly inefficient
in western Turkey and the Aegean Sea. Sn is efficient in parts of southwestern
Turkey, the western Pontides, and western Greece. Sn is not observed in eastern
Turkey and along the Aegean volcanic arc. Lg propagates efficiently in the Arabian
plate including paths that cross the Dead Sea fault zone and in northwestern Turkey.
Lg does not propagation in northeast Anatolia, across the Lesser Caucasus, and
north of the Hellenic arc (Sea of Crete). These results are a major improvement
on prior attenuation studies in this region and provide new constraints for proposed
An edited version of this paper was published by AGU. © 2000 American
Key Figures and Captions
Figure 4. Maps of interpreted zones of efficient, inefficient,
and not observed Sn (a) and Lg (b) and correlation with major tectonic units
in the region.