On the possible relationship between remote seismic activations and strong earthquakes in southeast regions of Eurasia and adjacent seismic focal zones

Using the example of the 14 largest earthquakes (MS ≥ 7.9) in area: −30–50°N, 78–180°E, the possible geodynamic interconnectedness of the processes of focus preparation with a preliminary moderate seismic activation in the subduction or collision zones crossing the areas of a future earthquake preparation remote from the focus is considered. Using the methods of the GIS-ENDDB software system (the selection of the circular area of influence of the seismic source preparation zone, the clustering of the event sample, the calculation of the normalized creepex and of the coefficient of its pair correlation with magnitude), the largest events of the Chinese global catalog CSN for 1999–2017 in areas under consideration were studied. Signs of such interconnectedness have been detected, what can serve as strong evidence in favor of the concept of the environment plasticity exhaustion in the preparation zone as a sign of transition to fragile destruction in the future focus.