On the Anomaly of Travel-Time of S Waves Observed in Eastern Japan

(Part II)

Abstract

In the first paper, it was found that the travel time of S wave usually shows remarkable anomaly in eastern Japan. In the present paper, it was assumed that the travel time of S wave shows anomaly only if the S wave passes through a special domain. A trial was made to seek this domain and it was revealed that such a domain exists contiguous to the bottom of the “nest of earthquake hypocenters” in eastern Japan.