SYSTEM FOR MONITORING LOCAL SURFACE EARTHQUAKE PRECURSORS Russian patent published in 2012 - IPC G01V3/02 G01V9/00 

FIELD: physics.

SUBSTANCE: disclosed is a system for monitoring local surface earthquake precursors on a secure territory, having two supply earth terminals connected to a probe current pulse generator, and a system of receiving earth terminals connected to a receiver which is connected to a signal processing unit. The system of receiving earth terminals is formed by N buried electrodes, N-1 of which are arranged uniformly on a circle of diameter D=0.5-0.6 km, and one central electrode placed at the centre of said circle. Radial conductors are connected each of the N-1 electrodes of the system of receiving earth terminals. Electrodes of the supply earth terminals are spaced apart by a distance L=(15-20)D. The system of receiving earth terminals is directed in the plan randomly relative electrodes of the supply earth terminals and lies from the latter at a distance X=(1.5-1.6)L. The probe current pulse generator generates current pulse bursts with frequency of 0.02-0.2 Hz, burst duration of 10-30 s and current in the pulse of 1-10 KA at least twice a day at the same time of the day.

EFFECT: high reliability of information on the hypocentre of an imminent surface earthquake and its parameters, particularly the event time and amplitude estimate.

5 cl, 3 dwg