Assessment of Landslide Dynamics Based on Microseismic Parameters

In this paper, the geodynamic conditions of an active landslide area located along the section of the A373 highway passing through the Kamchik Pass of Uzbekistan, using modern microseismic observation methods, have been analyzed. Landslides in this region represent a serious natural threat to transport infrastructure, settlements, and economic stability. In the study, field microseismic measurements were combined with the horizontal-vertical spectral ratio (HVSR) technique to assess the dynamic characteristics of the landslide and its tendency to melt from seismic impact. Field studies were conducted using high-precision three-component seismic instruments, such as the ETNA 2 and Tromino seismometers. The recorded microseismic vibrations were processed using the Geopsy and Grilla software packages. This made it possible to determine the main dynamic parameters of the soil, such as the resonant frequency. A thematic landslide hazard map was developed, illustrating the spatial distribution of liquefaction potential and identifying zones of high seismic susceptibility. These findings demonstrate that microseismic monitoring using the HVSR method is an effective and non-invasive tool for characterizing the internal structure of landslides, evaluating their current dynamics, and supporting engineering–geological decision-making for risk mitigation. The outcomes of this research are highly relevant for seismic microzonation, landslide hazard assessment, and preventive measures for slope stabilization, contributing to the sustainable operation of strategic transportation corridors in mountainous regions.