Calibrating function and station corrections forPKP waves in the vicinity of a caustic

Summary The homogeneous Magnitude System (HMS), developed by Vank, Kondorskaya and Christoskov, is used to calculate station corrections, magnitudes and a calibrating function for short-period PKP waves in the distance interval of 143° to 148°. The data basis consists of a set of 26 Tuamotu underground explosions and their records at 14 Central European seismic stations. The station magnitudes, calculated in this way show a smaller dispersion than the uncorrected (usual) values.