Geometrical Computational Method to Locate Hypocenter by Signal Readings from a Three Receivers
The information about hypocenters is essential for engineering tasks to predict a danger created by earthquakes. A nonlinearity in the earthquake location problem, a one-sided distribution of seismic receivers lead to a search of solutions improving hypocenter location accuracy. The original earthquake location method has been developed by using a physical and geometrical representation of the time difference between first signals from seismic waves registered by three different receivers. Data processing is performed applying algorithms of a computational geometry. The solution error is formulated in terms of an analytical geometry. Thus the method differs from traditional approaches, which are based on a standard statistic error. Taking into account the promising testing results we guess that the geometrical method can be as an additional computational technique or as a tool to get the trial hypocenter, which is an input parameter of standard software for hypocenter determining.
KeywordsHypocenter location Calculating geometry Local earthquake origin time
We thank the staff of the Icelandic Meteorological Office and University of Iceland, Reykjavik for providing us with the data of local earthquakes.
Co-authors will be forever grateful to the main author of this article Alexander D. Krutas, father and grandfather, who tragically died because of car accident on the 24th of November 2015 in Alushta city, Crimea.
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