On ScS Waves of Deep Earthquakes observed near the Epicenter and their Applications

摘要

In the present paper the author investigated the ScS waves of deep earthquakes occurred in Japan, and constructed their time-distance curves especially for the earthquakes of very small epicentral distances. The depth of the Earth's core from the surface was reexamined, and a method was devised to evaluate the epicentral distance and the focal depth of a deep earthquake from the readings of ScS_??_P and S_??_P at a single station. Also the author studied a peculiar appearance of the initial phases of the S wave of deep earthquakes.