deviations from the average multi-year norm of atmospheric precipitation and an increase in the intensity
of daily and nightly rainfall; c) large-scale human impact on the geological environment and a sharp
disruption of its equilibrium - an increase in the scale of urbanization, the development of new territories,
massive deforestation, etc.;
Based on the analysis of the amount and distribution of atmospheric precipitation in the study region, it
was found that if the annual precipitation rates are lower than the indicators characteristic of the multi-
annual climate regime of Imereti, landslide processes do not activate; if the annual precipitation rate
exceeds the multi-annual norm (within 100 mm), the degree of activation of landslide processes is within
the background, and when the annual precipitation rates exceed the multi-annual norm by 400 mm,
landslide processes begin to activate;
Considering the scale and intensity of the development of landslide-gravity processes, Imereti is located
in a region with an exceptionally high damage coefficient (K=0.7-0.9) for the development of landslide
processes and a very high potential for the development of landslides;
Out of a total of 544 settlements in the 11 municipalities of the Imereti region, 73 are in the high-risk zone,
151 in the medium-risk zone, 152 in the low-risk zone, and 168 settlements belong to the non-risk zone;
Four main areas of landslide processes are distinguished in Imereti: a) the area of very high intensity of
landslides, which mainly covers the Upper Imereti Plateau; b) the area of high intensity of landslides -
includes the lower Okatse River basin and the inner Okriba in northwestern Imereti; c) the area of
significant intensity of landslides extends over the Tskaltubo undulating plain, the foothills of Southern
Imereti, and the northern slope of the Meskheti Range; d) the area of medium intensity of landslides
includes the southern slope of the Racha Range, the upper Kvirila River basin, and the southern and
southeastern narrowed arc-shaped part of the Okriba, which continues northeastward within the Mukhura-
Khreiti range;
In 2015, there was a deviation from the average multi-year norms of atmospheric precipitation in Imereti,
namely, 495 mm more precipitation fell, as well as an increase from the average annual norm, which in
turn led to the activation of old landslide bodies and the emergence of new landslide foci. In total, in 2015,
against the background of an increase in atmospheric precipitation from the average multi-year norm, 29
old landslides were activated in the Imereti region, which covered a total area of 33.8 hectares, while 6
new landslide areas emerged and the landslide area amounted to 10.1 hectares.
In the study region, a total of 61 old landslide areas were activated in 2022, and 35 new landslide areas
emerged. Due to a slight deviation from the average annual norm of atmospheric precipitation (76.8 mm),
the activation of old landslides and the emergence of new foci were theoretically not expected, but there
was an influx of more than 30 mm of precipitation during the day and night, which was sufficient for the
development of landslide processes.
We consider it necessary to conduct geomonitoring in all settlements of the study region in the future,
regardless of the hazard risk; it is desirable to assess all settlements in the near future and, based on this,
create appropriate specialized maps according to hazard risk for individual municipalities, and it is
important to create a reliable early warning system for geological disasters.
REFERENCES
1. Ministry of Environment Protection and Natural Resources of Georgia/National Environmental Agency,
Department of Geological Hazards and Management Information Bulletin // Results of the Development
of Natural Geological Processes in Georgia in 2009 and Forecasts for 2010, Tbilisi, 2009, p. 295
2. Ministry of Environment Protection and Natural Resources of Georgia/National Environmental Agency,
Department of Geological Hazards and Management Information Bulletin // Results of the Development
of Natural Geological Processes in Georgia in 2012 and Forecasts for 2013, Tbilisi, 2012, p. 295
Page 942