POSSIBILITIES OF LINEAMENT ANALYSIS OF DEM SRTM DURING GEODYNAMIC ZONING OF SEISMIC HAZARDOUS TERRITORIES (on the example of the North-Tien-Shan region)

Fremd A. Gaipova A. Talgarbaeva D.
2023 Gnedenko Forum

Reliability: Theory and Applications
2023 #18 Issue Special Issue 5 96 - 110 pp.

Lineament analysis of space images can be successfully used for the purposes of formalized analysis and development of maps of geodynamic zoning with the ranking of the study area into areas that differ in the degree of relative geodynamic activity. As calculated indicators of geodynamic (neotectonic) activity, the density of faults, megacracks and other lineaments, expressed by their total length per unit area, was used. Therefore, the parameter density of strokes is taken as the basis for the taxonomic division of the study area into regions according to the degree of tectonic disturbance of the earths crust. All constructions are implemented on the basis of lineament analysis included in the CATALIST software package (Canada) On the example of two seismically hazardous regions of the Northern Tien Shan (Almaty and Zhambyl), the distribution features and properties of lineament density parameters are illustrated, followed by the construction of maps of geodynamic activity. The lineament analysis of the DEM SRTM of the regional level of generalization made it possible to establish the main features of the geodynamics of the regions-Zhambyl and Almaty regions at the present stage. The results obtained have proven their effectiveness and the ability to conduct an objective assessment of the seismicity of the territories, the reliability of which is confirmed by seismological and other ground-based observation data.

geodynamics , lineament analysis , seismic risk , seismicity , zoning

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Institute of Seismology of the Ministry of Emergency Situations of the Republic of Kazakhstan, Kazakhstan

Institute of Seismology of the Ministry of Emergency Situations of the Republic of Kazakhstan

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