The robust algorithm of nonlinear hypocentre determination is proposed. The algorithm has been coded in a flexible modular way for testing purposes. The method and application of the code is illustrated on a numerical example of hypocentre determination of four local earthquakes in the a priori 3-D velocity model of the seismically active part of Western Bohemia.
Hypocentre determination, velocity model, accuracy of the velocity model, model covariance function, geometrical travel-time covariance matrix, marginal a posteriori density function of hypocentral coordinates, arrival-time residuals, arrival-time misfit.
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