Open AccessAssessment of the geoenvironment stress state at the Caucasian mineral waters test plot using long-term seismic-ecological monitoring
Author(s) -
Oksana Grigor’evna Popova,
Oksana Grigor’evna Popova,
Максим Георгиевич Попов,
Максим Георгиевич Попов
Publication year - 2019
Publication title -
geoèkologiâ
Language(s) - English
Resource type - Journals
ISSN - 0869-7809
DOI - 10.31857/s0869-78092019515-22
Subject(s) - plot (graphics) , anisotropy , geology , magnitude (astronomy) , seismology , index (typography) , term (time) , soil science , environmental science , statistics , mathematics , physics , quantum mechanics , astronomy , world wide web , computer science
According to the results of continuous long-term seismic-ecological monitoring at the Caucasian Mineral Waters test plot (the seismic zone in the Cis-Elbrus region), data on the seismic velocity distribution pattern were obtained for the test plot territory. The high-speed structure is revealed, the horizontal dimensions of which do not allow predicting local earthquakes with a very high magnitude in this territory. Three-dimensional models of anisotropy index γ were obtained and the indexes of stress state S were estimated for different depths according to the interpretation results of converted PS waves from distant earthquakes. It is found that the distribution of the anisotropy index γ varies continuously by the depth, by the laterals and in time. The cyclic changes in the index S with time are noted for all depths.