Criterion of the Order Degree for Self-Oscillating Regimes in the Analysis of Geophysical Medium Dynamics

摘要

The criterion of the degree of relative order of complex oscillations based on renormalized entropy was used for the first time to analyze time variability of the state of a geophysical medium from the records of seismic noise. This criterion allowed us to demonstrate that intervals of increasing degree of order of background oscillations with a duration of 10-12 days are observed during the times of closely located strong crustal earthquakes with magnitudes 4.5 ≤ M ≤ 6.3 whose epicenters are concentrated at distances less than 300 km from the observation point.