Abstract
Theoretical seismograms are successfully used for the study of phase velocity of Love type surface waves in a dipping layer overlying a rigid body. An exact solution in such a case was derived in a previous paper (IsHIS, 1970). It is found in the case of up-dip propagation that the period and duration become shorter with increasing distance, and the later phase arrives at a receiver from the opposite direction of a source, namely from the direction of an apex. It is also found by three facts presented in this paper that the phase velocity in the dipping structure is equal to that of a horizontal structure with a depth at an observation point.
