公元1831年安徽凤台地震宏观震中考察  

Investigation on 1831 earthquake northeast of Fengtai,Anhui Province,and its parameter modification

作　　者：陈安国[1] 刘东旺[1] 沈小七[1] 邵磊[2] 王健[2] 

机构地区：[1]安徽省地震局,中国合肥230031 [2]中国地震局地球物理研究所,中国北京100081

出　　处：《地震学报》2010年第4期495-503,共9页Acta Seismologica Sinica

基　　金：中国地震局地震行业科研专项(200708048);地震科学联合基金(A08075)共同资助

摘　　要：公元1831年(清道光十一年)安徽凤台曾发生一次破坏性地震,史料记载情况基本一致,但现有各版地震目录所确定的震中位置存在分歧,震中位置竟多达4处.在分析已有资料的基础上,作者对该地震进行了实地考察.经综合分析认为,应当对此次地震的宏观震中进行调整,震中位置应改为32.88°N、116.89°E,名称相应变更为"安徽怀远西南地震".同时认为此次地震原来所确定的震级(614)偏大.A destructive earthquake occurred in 1831 near Fengtai county,Anhui province.Historical archives had consistent records,but the epicentral locations were diverse in different catalogues,having 4 debated sites.After analyzing existing data,the authors had carried on field investigation on the candidate sites of the earthquake.With comprehensive analysis,we consider that the location of macroscopic epicenter should be modified.The new epicenter is at （32.88°N,116.89°E）,and the event name should be revised as ＂the earthquake in Southwest Huaiyuan county,Anhui Province,in 1831＂.Meanwhile,the previously estimated magnitude （61/4） is considered to be higher than it should be.

关 键 词：地震活动 历史地震 地震参数 地震考察 安徽凤台 

分 类 号：P316[天文地球—地震学]