近2000年来江苏地震的时空分布特征  

Temporal and Spatial Characteristics of the Earthquake in Jiangsu Province in Recent 2000 Years

作　　者：金鑫[1] 唐艳芳[1] 叶正伟[1] 何燕萍[1] 王昆婷 杨松[1] 

机构地区：[1]淮阴师范学院城市与环境学院,江苏淮安223300

出　　处：《淮阴师范学院学报（自然科学版）》2016年第1期51-56,共6页Journal of Huaiyin Teachers College;Natural Science Edition

基　　金：国家自然科学基金面上项目(41471425);教育部人文社会科学研究一般项目(10YJC790342);江苏省大学生实践创新训练计划项目(201310323020Z);江苏省高校"青蓝工程"优秀青年骨干教师资助项目

摘　　要：基于史料记录数据,采用统计分析和GIS核密度分析方法,探讨了江苏省近2000年来地震的时空分布特征规律.结果表明：江苏省近2000年的地震分布特征在时间上表现为两个明显的活跃时段,分别为225～578年和1346～1924年,其中1346～1924年的地震频次较225～578年偏高,两个活跃时段地震频次占研究时段的88.9%.地震在空间的分布上总体以苏南最为集中,且表现为苏南往苏北减少的演变特征,以南京及其周边地区和苏州-无锡-常州及其周边地区为两个地震高密度区.全省境内地震烈度均较小,苏南地区的发震次数明显多于苏北地区,但其地震烈度较小,且在地震频发的年份,其地震烈度有所偏高.Based on the historical materials,the statistical analysis method and GIS kernel density analysis method was used to investigate the temporal and spatial distribution characteristics of the earthquake in Jiangsu Province in recent 2000 years. The results showed that： The temporal distribution characteristics of the Earthquake in Jiangsu Province can be divided into two period,225 ～ 578 and 1346 ～ 1924. The occurrence of the earthquake from 1346 ～ 1924 is higher than that from 225 ～ 578,and in the entire period of study,the total earthquake appeared in this two active periods accounted for 88. 9%. The spatial pattern of the earthquake is that most earthquake in Jiangsu was concentrated in Southern Jiangsu,which mainly decreased from southern to northern,Nanjing and the region of suzhou-wuxi-changzhou and their surrounding area are of higher density of the Earthquake. All areas of Jiangsu＇s earthquake intensity is relatively small,the earthquake number in southern Jiangsu is more than the northern,but the earthquake intensity is opposite. Result also implied that when an earthquake occurred in a certain year with more earthquake,the degree of damage of the earthquake could be higher.

关 键 词：地震 时空特征 烈度 江苏 

分 类 号：P315.9[天文地球—地震学]