An algorithm for the optimum distribution of a regional seismic network — II. An analysis of the accuracy of location of local earthquakes depending on the number of seismic stations |
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Authors: | Andrzej Kijko |
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Affiliation: | (1) Institute of Geophysics, Polish Academy of Sciences, Pasteura 3, 02-093 Warsaw, Poland |
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Abstract: | Summary Seven optimal networks consisting of 4 to 10 stations are compared for a given region, where velocity-depth profiles and the distribution of seismic intensity are known. Assuming that the standard error of arrival time is t=0.05 s and the standard errors of the parameters of velocity-depth profiles are equal to 5% of their values, the average standard errors of the origin time and focus coordinates are estimated. The application of optimum methods to the planning of seismic networks in the Lublin Coal Basin is presented, and maps of standard errors of origin time, depth and epicenter (xy) for the case of an optimum network of 6 seismic stations are given. |
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Keywords: | Seismic network, accuracy of location Earthquake location, accuracy Location of earthquakes, accuracy |
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