Abstract: In this paper, the geological hazard investigation results of Chongyi County, Jiangxi Province are compiled with Arc GIS based on the information method of Geological Hazard Risk Assessment and the results are presented on a 1:50,000 geological hazard map. The relevance between the various factors and the geological hazard are investigated.  These potential factors that might triggering the geological hazards are: elevation and slope grade of the target object; watershed characteristics; engineering geology, lithology and tectonic structure; locations of residential communities and highways. These factors are grid computed based on the geohazard locations and the geohazard probability distribution and the segmental contribution of each factor and its information value are obtained. The information value of each factor is superimposed and the information distribution map of the target location can be obtained. Based on the probability of information of the each geological hazard point, the potential geohazard within the study area can be divided into high, medium, low, very low levels. The evaluation results and the predicted events are consistent with each other indicating that the proposed method could be useful.

Key words: Geological Hazards, Risk Assessments, Information Methods, GIS