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近几年来,我国一直处在地震活动的高潮期。据统计,我国大陆有41%的国土属于地震基本烈度Ⅶ度以上高烈度区。在这个范围内分布着22个省会城市和33个人口在50万以上的大城市。在近几年国家确定的地震重要监测防御区和地震重点监测防御城市中,有29个百万人口以上特大城市和46个50万人口以上的大城市列为我国今后一段时间的防震减灾重点。面对发生强烈地震的威
In recent years, our country has been at the climax of the earthquake activity. According to statistics, 41% of the mainland China's territory belongs to the high-intensity area above the earth's Ⅶ degree of earthquake intensity. In this area, there are 22 capital cities and 33 metropolitan cities with a population of over 500,000. Among the major earthquake monitoring and defensive areas and the key earthquake monitoring and prevention cities established in recent years, 29 mega-cities with a population of over one million and 46 mega-cities with a population of over 500,000 have been listed as the focal points for earthquake prevention and mitigation in the coming period. In the face of a violent earthquake