Geohazard has been defined as a hazard of geological, hydrological or geomorphological nature which process a threat to man and his activities (Doornkamp, 1989). Geohazard has also been defined as being one that involeves the interaction of man and any natural process of the planet (McCall, 1992).
Soil liquefaction, ground settlements, slope failures, landslides, erosion, and related phenomena are studied to identify the processes and mechanisms contributing to hazards, and for establishing the methods for prediction and mitigation of disasters. These investigations incorporate combined process-based and modeling approaches related to mountain and lowland hazards. Integrated studies on landslides are performed with respect to the mechanism of initiation and motion, risk evaluation and disaster reduction, and developments of regional and global monitoring systems.
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