We determined singular points on the four Riemann planes in our previous paper as the first stage for solving our subject. In this paper, assuming a dilatational point source, we get displacements at various epicentral distances.
The main results obtained in this paper compared with the results in semi-infinite solid obtained by T. Sakai are as follows:
(1) The waves, which are propagated along the interface, are P-wave in solid, Rayleigh wave whose velocity is slightly smaller than that of sound in water and compressional wave in water and S-wave in solid.
(2) P-wave is almost similar to the same wave in the case of semi-infinite solid but from the point of view of the form of the equation S-wave in the case of semi-infinite solid corresponds to compressional wave in water rather than S-wave in our case.
(3) At a large epicentral distance on the boundary, the maximum values of the vertical components of displacements are generally smaller than those of the horizontal except S-wave.
抄録全体を表示