Statistical relation among earthquakes, average wind speed on the earth's surface, and anomalous propagation of broadcasting waves in the line-of-sight VHF band

Abstract

This paper was intended to find out any relation between anomalous lineof-sight propagation on the very high frequency (VHF) band and occurrences of earthquakes near the VHF propagation paths. After the stochastic consideration, it was found out that earthquakes associated with anomalous propagation were characterized by relatively large magnitude earthquakes, and relatively near distances from epicenters. Moreover, the authors investigated the relation between average wind speed on the earth’s surface and anomalous line-of-sight propagation in VHF band. As a result, we can obtain the high probability which indicates strong relation between the anomalous propagation and occurrences of earthquakes by considering the average wind speed of the earth’s surface.