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中国地震灾害发生频繁,因此进行有关地震灾害风险性分析十分必要。本文在分析地震灾害形成的各主要因子的基础上,结合1900-2009年地震灾害数据,建立了地震灾害风险评估模型,定量确定了各风险性影响因子。最后利用ArcMap软件的栅格计算功能,对于地震灾害中最重要的人口因素进行了分析,形成了中国地震灾害人口风险性分布图,并划分出了人口高风险区。
Because of the frequent occurrence of earthquakes in China, it is necessary to carry out the risk analysis of earthquakes. Based on the analysis of the main factors of the formation of the earthquake disaster and the earthquake disaster data from 1900 to 2009, this paper established the risk assessment model of earthquake disaster and quantitatively determined the risk factors. Finally, using the grid computing function of ArcMap software, the most important demographic factors in the earthquake disaster are analyzed, forming a risk distribution map of the earthquake victims in China and dividing the areas with high population risk.