广东揭汕潮地区城市群地震灾害及地震易损性分析

Earthquake Disaster and Vulnerability Analysis of Jie Shan Chao Urban Agglomeration of Guangdong Province

从历史最大地震烈度分布图分析,可知揭阳、汕头、潮州三市位于Ⅶ～Ⅷ度高地震烈度区。该城市群地震灾害有以下特点:市区发生破坏性地震的潜在危险性大;地震时市区地震烈度高,地震灾害大,损失严重。采用宏观经济易损性的地震损失分析方法,重演该区的历史破坏性地震。分析表明:抓好该区的防震减灾工作是保持社会和经济建设持续发展的一项重要工作。

Based on analysis of intensity distribution of historical maximum earthquake, we know that Jieyang, Shantou and Chaozhou city are located in high intensity region of Ⅶ～Ⅷ degree. The urban disaster has the following features： destructive earthquakes occurred in the urban areas have higher potential risk; during earthquake the urban area has higher seismic intensity, bigger earthquake disasters and larger losses; use of the seismic damage analysis method of macroeconomic vulnerability, we reoccured the historical destructive earthquakes in the area. The result shows that do a good job of earthquake preparedness and disaster reduction in the area is an important task to maintain the sustainable development of the social and economic development.