Recent Geodynamics of Induced Faults

An analysis of the results of multiple repeated geodetic observations of deformation processes in fault zones is presented. Numerous examples have shown that the dominant type of local vertical displacements of the earth's surface in fault zones is anomalous symmetrical subsidence, which is identified with thrust faults. A mechanism for the parametric induction of near-fault deformations by small endogenous, exogenous, and technogenic influences is proposed. Examples of these impacts are given. Antiphase behavior in the time course of deformation and seismic processes are revealed. An energy model of the relationship between deformation and seismic phenomena is considered. Based on ideas about volumetric deformations localized inside faults and formed under external (regional) quasi-static loads, a quantitative geomechanical model for the formation of anomalous deformations in fault zones has been developed. Examples of the spatiotemporal migration of deformation activity of fault zones are given. A phenomenological model of the formation of autowave deformation processes is formulated based on the mechanism of the parametric nonlinear interaction of induced faults as a system of kinematically excitable elements.