SEISMOGEODYNAMICS AND SEISMIC MAPPING OF NORTH EURASIA

Abstract

This study of seismogeodynamics and seismicity in North Eurasia was based on the idea of a structural, dynamic, and energy unity of the geophysical medium and of seismogeodynamic processes operating in it. This unity is clearly expressed on global, regional, and local scales in a hierarchical orderliness of seismogenic features, and in the trends of their geodynamic evolution. A uniform seismogeological data base was compiled for North Eurasia and a 3-D lineament-domain-focal model of earthquake source zones was developed. For the first time in the history of this research, extended rather than point earthquake sources were considered; the most recent concepts of nonlinear seismogeodynamic processes were invoked. A set of probability maps were prepared to depict general seismicity zones in North Eurasia, the maps for the area of Russia being accepted as a basis for the national construction.