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Peculiarities of correlation of seismicity of basic seismogenic zones of Ukrainian Transcarpathians with the phases of cycles of solar activity
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 18th International Conference on Geoinformatics - Theoretical and Applied Aspects, May 2019, Volume 2019, p.1 - 6
Abstract
SUMMARY
The correlation of earthquakes of the Ukrainian Transcarpathians with K≥7 for 1962–2017 with four phases (minimum, growth, maximum, falling) of 11-year cycles of solar activity (SA) was studied, separately for two zones with different geodynamic mode (extension and compression). It was found that the relatively large (with a factor J=1.93) number of earthquakes in zone of extension occurred in the falling phase of the SA, and in the compression zone this occurred in the phases of growth and maximum (with a factors J=1.14 and J=1.47 respectively). The correlation of stronger (tangible, with M≥2) earthquakes of the Ukrainian Transcarpathians with variations of solar activity was also studied. The analysis was carried out for the whole subregion using A. Gusev's method. It was found that the largest numbers of earthquakes fall on the maximum phases (this is typical for earthquakes of various magnitude ranges (with M=2–2.9 and M≥3)) and on the falling phases (for earthquakes with M=2–2.9) of 11-years SA cycles. The peculiarities of seismotectonics of the Ukrainian Transcarpathians as potential factors of the formation of such statistically appreciable correlations were analyzed.
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