摘要
建立关中盆地历史地震数据库，分析了３０００年来Ｍ≥３．０地震活动的自律性与空间迁移特征．结果发现：大致每历经１６次～２０次有感地震后便规律性发生一次破坏性地震；发震地点具有以中部为轴，从中部向东部、再向西部迁移的趋势．依此预测，本区将在近期发生一次Ｍ＜５．０的强有感地震，位置在中部的西安附近．
The selforganizality of earthquake magnitude structure and space migration of occurring of M≥3.0 earthquake activity since 3000 yr. A.D.was analysed, on the basis of building historical earthquake data base. The results show that, there will be an destructive earthquake after 16～20 times felt earthquake have occurred, the site where earthquake occurred migrate from the centre area to the east area firstly and then to the west area in Guanzhong Basin. According that to forecast the future earthquake trend, there will be a vilenent detectable earthquake occurring in recent, it's earthquake maguitude about 4.0～5.0 and earthquake cenctre may accure at the centre area of Guanzhong basin nearby Xi′an city.
出处
《陕西师大学报（自然科学版）》
CSCD
北大核心
1998年第2期91-95,共5页
Journal of Shaanxi Normal University(Natural Science Edition)
基金
陕西师范大学青年基金
关键词
盆地
自律性
空间迁移
地震活动
统计
Guanzhong basin
histriocal earthquake
selforganizlity structure
space migration
centre
trend forcasting
