Geophysical processes and biosphere: article

Аnnotation: The results of temperature monitoring in a 300-meter well kun-1 (Kunashir Island) in 2011-2015 are considered. To the previously observed temperature variations caused by tidal deformations, free thermal convection and deformation processes associated with the nucleation and occurrence of tectonic earthquakes, quasi-periodic temperature fluctuations with an amplitude of up to 0.3 ºC and an oscillation period of 14-26 hours have been added since November 2011. Five cycles of such fluctuations lasting from 2 to 6 months have been recorded. Each cycle was initiated by an earthquake with a magnitude M > 2.5 lg( R ), where R is the epicentral distance (km). According to their characteristics, the oscillations are unique and have not previously been described by anyone. Assumptions have been made about the possible connection of the registered oscillations with the inertial currents of the ocean or with hydrothermal processes in the Earth’s subsurface interior. The phenomenon discovered requires further scientific study not only as an object of interest to fundamental science. It can be a sign of an earlier unknown type of geodynamic activity with a significant threat to the population of the area.