engleski

Anisotropy of the P-wave velocity in the area of Central and External Dinarides

The anisotropy of the P-wave velocity in the crust and upper mantle of Central and Southern External Dinarides was determined by considering travel-times of Pg and Pn phases recorded on local and regional seismic stations. A total of 4965 Pg and 6833 Pn arrival times from 1027 well-located earthquakes in that area were selected for analysis. The velocity representative for a given azimuth interval was determined by considering differences of travel-times and of ray-paths for all events as reported by stations within this azimuth window. The obtained azimuthal distribution showa pronounced anisotropy both in the upper crust and in upper mantle. The crustal velocities range between 5.8 and 6.3 km/s.

Seismic anisotropy; Dinarides; Croatia

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