Determination of long-term earthquakes by data of the Karelian seismic network

Abstract

In this paper, the parameters of a distant earthquake were determined from records of the Karelian seismic network. A spectrum of signals of longitudinal waves is constructed. The method of determining the hypocenters of remote earthquakes, proposed by the author of the book [1], was used. The coordinates of the hypocenter are usually searched for by minimizing the functional of the sum of the squares of the residuals, between the calculated and observed times of arrival of elastic waves to the receiving point. The method used to determine the coordinates of the hypocenter is to minimize the functional in the spatial variables, which makes it possible to increase the stability of the determination of the coordinates of the hypocentre of the earthquake. An algorithm has been created, according to which the HypoGlobal program is written. The coordinates of the hypocentre of the event are obtained.