Approximative ray tracing and the accuracy of earthquake localization in media approximated by block structures |
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| Authors: | Jan ?ílený Jaromír Janský Reviewer V ?ervený |
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| Institution: | (1) Geophysical Institute, Czechosl. Acad. Sci., Prague;(2) Institute of Geophysics, Charles University, Prague |
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| Abstract: | Summary Localization errors made by approximating a given medium by a homogeneous rectangular block model and due to the approximative solution of two-point ray tracing are estimated for four different structures. The separate influence of the individual characteristics of the medium is discussed. The iterative Geiger method supplemented by a generalized inversion of the damped least-squares and Marquardt algorithm is used for localizating five hypothetical hypocentres using 9 stations. Travel times in the original structures, used as input data for localization, are calculated using a special ray tracing system.
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