On the basis of principles of lord Cavandish’s torsion balance it has been developed multichannel system for monitoring of geodynamical processes. System is being operated in realtime 24-hour mode during more than 25 years. On the basis of the data registered by the system it has been established the following:
1. Before the earthquake with M>5 in the readings of the system it is observed signal causing angular deviation of the torsion balance beam from the equilibrium state during time intervals of several hours, days and even months and years. This regularity corresponds to the 95-100% confidence level, being in compliance with the actual events on the planet during 25 years.