релокація

The length of the interval between the first P- and S-waves is routinely used as a rough estimator of epicentral distance. We propose an algorithm for the relocation of earthquakes occurring in clusters, based on the simultaneous comparison of a large number of intervals. Variations in the intervals at each station are measured by cross-correlation between the respective portions of records directly and without a reference to any absolute times.

stable tendency of converging, from different sets of randomly seeded initial locations, to virtually indistinguishable final sets of locations, within each of the groups.