Experimental hodograph of body waves for the western part of the East European platform (Volyn-Podolia - Ukrainian Shield)

Abstract

Results of travel-time curve calculation have been presented for P- and S-waves in the interval of epicentral distances 10-350 km by the records of 25 local earthquakes (mb=2,0÷3,4; h0=2÷7 km)and 43 industrial explosions. Comparison of calculated hodograph with global hodograph (h0=0 km) has been conducted. It has been found that within the limits of the studied interval of distances differences with Kennett hodograph are not essential and do not exceed 1,5 s (P) and 2 s(S), with hodograph of Jeffreys-Bullen differences are considerable within the distances less than 100 km - 3-6 s (P) and 4-8 s (S). The obtained hodograph has been compared with calculated earlier for the distances up to 500 km by the records of the earthquakes (mb=2,0÷4,0; h0=2÷10 km)of the Carpathian region, the western part of the East-European platform and industrial explosions