Abstract
Modern seismology attaches great importance to the methods of short-term earthquake forecasting. One of these methods is a method based on the registration of disturbances of the atmospheric electric field and the field arising in rocks before earthquakes. Until now, this problem is discussed at the level of hypotheses. The mechanism of perturbations is unclear and the literature does not provide any convincing evidence of the explanation of the observed phenomena – flashes and columns of light, breakdown of electric cables in the earth a few hours before the earthquake and other phenomena. In the present article on the basis of the phenomenon of fast cracks loading discovered in the nineties of the last century [1] the explanation of these phenomena is offered by the solution of a direct problem about an electric field of the hearth of technogenic earthquake in the atmosphere.
Highlights
Over the past twenty years in the Kuzbass observed increase in seismic activity of the earth's crust, resulting in an increased number of dynamic manifestations of rock pressure in mines, and did not appear earlier provoked by mining induced earthquakes of small force
Modern seismology attaches great importance to the methods of short-term earthquake forecasting. One of these methods is a method based on the registration of disturbances of the atmospheric electric field and the field arising in rocks before earthquakes
In the present article on the basis of the phenomenon of fast cracks loading discovered in the nineties of the last century [1] the explanation of these phenomena is offered by the solution of a direct problem about an electric field of the hearth of technogenic earthquake in the atmosphere
Summary
Over the past twenty years in the Kuzbass observed increase in seismic activity of the earth's crust, resulting in an increased number of dynamic manifestations of rock pressure in mines, and did not appear earlier provoked by mining induced earthquakes of small force (mostly fifth to seventh energy class). 1) the focal area of the seismic event is a certain volume the area of rocks surrounding the place of the incipient rupture and corresponding to the area of irreversible deformations and maximum variations of mechanical stresses; 2) the effective focal area of the seismic event is the volume area of rocks including the focal area, and a area of possible aftershocks These focal areas are associated with displacements on large tectonic faults in the earth's crust. In the preparation of mining-tectonic shocks and man-made earthquakes, the focus of which is located at a relatively shallow depth, both on the earth's surface and in the atmosphere there are noticeable anomalies of the natural electric field, due to the charging state of cracks when they accumulate in the area of the hearth. In this article we obtain estimates of the potential and intensity of a quasi-stationary electicity field generated by a three-dimensional object
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