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We determined singular points on the four Riemann planes in our previous paper(1) 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.

On the Propagation of Tremors along the Interface of Water and Solid produced by a Point Source in a Solid (II)