Common condition of ladslide-gravitational events in Georgia and risk of their development scaleon the backgroundof climate change and earthquake activity

Author: Tsetsilia Donadze
Co-authors: G.Gaprindashvili
Keywords: landslide-gravitational events, earthquake, climate changes
Annotation:

Common condition of landslide-gravitational events In Georgia and risk of their development scale on the background of climate change and earthquake activity Ts. Donadze-Assistant professor, G. Gaprindashvili- Doctoral candidate Ivane Javakhishvili Tbilisi State University Faculty of exact and natural sciences Georgia, with its scales of origination of Geological Disasters (Landslides, Mudflow, Erosion, Snow Avalanches, Earthquakes and etc), their reoccurrence, vulnerability and with the negative results inflicted by these processes to the population and Economics is a most complex mountainous region of the world. A strong influence of egzo-geological natural processes experienced 70% of country teritory, 3000 settlement, and intensity of the 7-9 magnitude earthquake hazard risk is almost entirely Georgia, which directly reflects the impact of stimulation of landslide - gravity and mudflow events. At present, In Georgia there are fixed 53 thousand landslide - gravitational body, and they produce a risky District, 3000 mudflow gorges, 5000 snow avalanches, more than 1000 sea and riverbed erosion of 1500 km in length. Incomplete data for the last 45 years as an Eco-migrant status more than 60000 families was resettled, almost 1000 people was died, 1.5 million ha of agricultural lands were damaged and/or destroyed, and the total damage exceeded $ 12.5 billion. In the last decades of the 20th century in Georgia is marked shortening of the intervals of extreme reactivation of Geological disasters. Catastrophic events may be triggered by (1) extreme hydro-meteorological events, probably on the background of global climatic changes, (2) intense earthquakes in Caucasus-Pontides region, (3) large-scale human impacts on the environment, (4) Societies with a low level of preparedness for concerning these hazards are especially hit hard. To prevent hard consequences of natural disasters it is important to determine where and what kind of scale of geological disaster’s occurrence is expected and what danger threatens the population or engineering - industry facilities. Then it will possible to eliminate the risk of population or strategic facilities got in emergency situations efficiently and effectively. For protection of population and Engineering-Agricultural object from Geological disaster is well-organized monitoring research from control and assessment to prognosis and management system.