On the Pulsatory Oscillations of the Surface Layer of the Earth. (I)

Abstract

The pulsatory Oscillations abserved at Tokyo have been analysed with the method recently proposed by one of the authors and Mr. Husimi. The result of the analysis shows that the oscillation is due to the standing wave of the earth's block caused by some external forces. The Variation of the external force is calculated, and we find that is makes the type of quasi-periodic shock such as sea-tide at the coast.