Titlebook: Computational Seismology; V. I. Keilis-Borok,Edward A. Flinn (Technical Dire Book 1972 Consultants Bureau, New York 1972 earthquake.geophy

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Computer Determination of Earthquake Epicentersn is unknown and some of the observations contain large errors (as is the case in seismological surveying). We judge from rather extensive experience with our program that when the necessary minimum quantity of data is available, failures (cases in which no solution is found) are very rare, and sign

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Approximation of Velocity Distributions for Calculation of P-Wave Times and AmplitudesThe dependence of velocity v upon depth r in each layer was represented by a cubical parabola. This approximation makes v(r) smooth enough to justify use of the ray theory (with the exception of regions where the ray theory is entirely inapplicable: caustics and shadow zones). The disadvantage of th

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