A graphical method for hypocenter determinations with layered structure models is proposed. The S-P or P-0 times observed at three stations are used. Firstly, nomograms for obtaining hypocentral distance D for travel time P-O (or S-P) and focal depth are constructed from the travel time table which is calculated for an appropriate structure model. An iterative method is employed. At the j-th iteration, the following equation is solved graphically by the conventional method drawing three circles with radii corresponding to the hypocentral distances;
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
48
号
6
ページ
1137 - 1143
発行年
1971-01-30
ISSN
00408972
書誌レコードID
AN00162258
フォーマット
application/pdf
日本十進分類法
453
出版者
東京大学地震研究所
出版者別名
Earthquake Research Institute, University of Tokyo
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62.地殻構造を考慮した震源の図式決定の一方法
ji0486009.pdf
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