著者

和達 清夫

出版者

公益社団法人 日本気象学会

雑誌

気象集誌. 第2輯 (ISSN:00261165)

巻号頁・発行日

vol.10, no.7, pp.397-401, 1932

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In this paper, is treated a simple geometrical method for locating the position of earthquake focus by the arrival times of initial phase observed in the seismograms of several stations near the epicenter. The propagating velocity of seismic waves is assumed to be constant everywhere in the crust, but some considerations are also made in the case that the velocity increases with the depth.