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Published April 1958 | Published
Journal Article Open

Polar graphs of initial motions at an earthquake source

Båth, Markus


A modified technique for fault-plane solutions is developed, using polar diagrams with the earthquake focus at the origin and with station azimuth and angle of incidence at the focus as coördinates. A figure is given illustrating the distribution of initial longitudinal motion in a perfectly general case for a plane fault source with rectilinear slip, together with all the special cases which can be derived from it. Formulas are given which combine all the quantities entering into the solution.

Additional Information

Copyright © 1958, by the Seismological Society of America. Manuscript received for publication March 25, 1957. My most sincere thanks are due to Professors H. Benioff, B. Gutenberg, and C. F. Richter for many valuable discussions.

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