GIS-technologies in geophysical information databases processing

• Published in: IOP conference series. Materials Science and Engineering 2020-08, Vol.913 (5), p.52050
• Main Authors: Zaalishvili, V B, Kanukov, A S, Fidarova, M I
• Format: Article
• Language: English
• Subjects: Earthquakes; Geophysical methods; Geophysics; Seismic activity; Seismic hazard; Soil analysis; Soil conditions; Spatial distribution
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/913/5/052050

There are vast opportunities for obtaining a huge amount of information about various objects in modern world. This information can often be processed only using modern computer technologies. The development and implementation of the new methods for modeling the geological objects, moving or spreading a particular geophysical process, represent an important task of establishing interconnections and spatial distributions' correlation in various physical fields. The seismic events recorded by 20 seismic stations installed in the areas with different soil conditions have been analyzed. To exclude the influence of the seismic vibrations source type, the seismic records were selected for each station, the epicenters of which were in the same area 20x20 km in size. The diagrams depicting the vibrations real spectrum acceleration area were prepared. For most of the obtained dependences, it was found that the real spectrum area of vibrations and acceleration are related in a nonlinear manner. In this case, the nonlinear dependence begins to develop, as a rule, at the acceleration values above 0.1g. From this we can conclude that the use in the construction calculations of the expected earthquake manifested intensity values is not sufficient for a reliable assessment of the possible seismic impact level, since the dependence of the incoming energy on the intensity magnitude is not linear. This implies the need to build the seismic hazard maps of the territory in the acceleration units.