METHOD FOR SHORT-TERM PREDICTION OF EARTHQUAKES Russian patent published in 2012 - IPC G01V1/00 

FIELD: physics.

SUBSTANCE: two measurement stations spaced apart are installed on a stretched measuring base. Each measurement station has two sensors buried into the ground and lying in mutually orthogonal planes. The axes of sensitivity of the sensors on the abscissa are aligned in the direction of the base. Seismic background noise is detected in form of discrete digital readings of signal amplitude values. One-time Fourier spectra of orthogonal signals are calculated for each measurement station. Direction angles of the phase front of seismic background noise of each of the stations are calculated: Q₁ and Q₂. If said angles are not equal Q₁ ≠ Q₂, the seismic process is beginning. The hypocentre of the seismic process is found as the point of intersection of beams originating from the origin of coordinates of measurement stations at angles Q₁ and Q₂. The period of seismic waves is found for each moment in time. The time of the seismic impact from the beginning of the seismic process and the magnitude of the impact are calculated.

EFFECT: longer time interval for preventive forecast, high accuracy of determining forecast parameters.

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