On the Theory of Seismic and Seismoelectric Phenomena in a Moist Soil

In this paper, Frenkel introduced the theory of wave propagation in saturated porous media. A second-type compressional wave, also known as the slow wave, was predicted for the first time, based on theoretical analysis. The seismoelectric phenomena observed in the field were explained as the result of second-type wave propagation. This paper was originally published in 1944 in the Journal of Physics, Vol. III, No. 5, pp. 230–241. It is republished with permission by the Schmidt Institute of Earth Physics, Russian Academy of Sciences, courtesy of Professor Alexander O. Gliko, Director of the Institute. The paper was prepared with typographical corrections by Alexander Cheng.