In pursuance of the Decree of the President of the Republic of Uzbekistan PP-158 of May 16, 2023 "On additional measures to further improve the system for ensuring seismic safety of the population and the territory of the Republic of Uzbekistan", a system for monitoring the stress-strain state of the earth's crust and man-made earthquakes associated with the extraction of solid minerals has been established on the territory of the Kalmakyr and Yoshlik I mines of the AMMC.

This system is aimed at identifying the features of man-made seismicity in the regions of solid mineral extraction and studying seismic processes.

Its main goal is to create a local network of highly sensitive seismic stations, study the seismic regime parameter base, and forecast changes in the deformation stress of the territory using analysis of results based on geophysical data.

Monitoring includes solving a number of problems, such as selecting optimal equipment, developing methods for its installation and operation, and ensuring uninterrupted, autonomous, and reliable operation of the system. In addition, the system performs stationary and magnetometric observations, analyzes the parameters of the earthquake focal mechanism to assess the deformation state of the earth's crust.

The use of modern methods for analyzing weak earthquakes allows, in conditions of increased noise, to determine their epicenters even with a minimum number of stations. Comparison of the obtained data with historical and archival materials makes it possible to assess long-term changes in the seismic regime, including the general level of seismic activity and man-made impact. Based on the comprehensive semi-annual and annual results for the study area, conclusions are formed.

In order to launch the monitoring system on the territory of the Kalmakyr and Yoshlik I mines, a local observation network was created, consisting of 4 seismic and 1 magnetometric observation stations. Also, measurements of the magnetometric profile, consisting of 9 measuring points, were created.

Seismic and geophysical observations are currently ongoing.

Kahramon Dushanov,

Commander of the civil defense squad of the AMMC