Geophysical monitoring of the geodynamic regime of the territory of Armenia is carried out including observations of the chemical composition of groundwater, changes in the stress-strained state of the earth’s crust and current seismicity. Hydrogeochemical effects of changing the stress-strained state of the medium as indicators of modern geodynamic processes have been revealed. Based on published data, the authors suggest that the nature of the manifestation of geochemical anomalies depends on the parameters of the forthcoming seismic event – magnitude (M) and epicentral distance (Δ). A map of the spatial-temporal distribution of deformations of the earth’s crust because of earthquakes over the past three years in the region has been compiled. The main components of ionic (Cl–, HCO3, SO4, Mg2 +, total mineralization) and gas (CO2) composition of mineral waters in comparison with seismicity in the earth’s crust are studied. A map of the distribution of earthquake epicenters in space and in time has been compiled. The obtained graph shows the hypocenters dependence of magnitude of earthquakes that occurred during the investigated period on the depth of hypocenters. Earthquake catalogue is using to plot earthquake recurrence. Statistical analysis of observational data showed that the most informative predictive characteristic is the dispersion of carbon dioxide content in water. According to the time series of concentrations of chemical indicators, the effects associated with the geodynamic regime of the earth’s crust of Central Armenia were determined. A map of the distribution of deformations in the earth’s crust of central Armenia was compiling taking into account the depths of the hypocenters of earthquakes.

The purpose of the presented work is to determine and evaluate changes in the geodynamic characteristics of the strong earthquake source zone in the Javakheti highlands and central Armenia. The migration of source zones of strong earthquakes is given. A certain pattern has been revealed in the occurrence of destructive earthquakes in the territory of the Armenian Highlands. Active faults and fault zones of the territory of Armenia have been identified. The sources of strong earthquakes are studied according to seismicity data: seismogeodynamics of source zones and their relationship with the occurrence of strong earthquakes. The geodynamic conditions of source zones of strong earthquakes are estimated from the seismicity data of these zones in connection with the occurrence of strong tectonic movements and taking into account stress and strain fields. The periods of seismic calm, the features of changes in the level of groundwater and chemical composition in connection with the preparation of earthquakes are considered. Based on the block structure of the earth’s crust of the territory of Armenia, the dynamic parameters of the blocks of the earth’s crust (deformation, stress state) are determined. The geodynamics of strong earthquake source zones in the north and in the middle parts of Armenia, where an increase in seismic activity of these parts of the region has been observed in recent years, has been identified and studied. The seismic geodynamics is substantiated on the basis of data from the study of modern movements of the earth’s crust and in the historical past, which gives an idea of the dynamics of physical processes occurring in the source zones of earthquakes. A group of mineral water deposits, which is particularly sensitive to seismic events, has been identified. An estimate of the information content of the observational hydrogeodynamic network of Armenia is given. The geodynamic activity of the zone of sources of strong earthquakes in the Javakheti Highlands of the territory of Armenia has been revealed. A seismological section was built along the strike of rocks in order to determine the direction of migration of earthquake sources in the northern part of the region of Armenia.