摘要
在各种地形变的异常中,有些异常不能只归属于一次地震,而是一组地震的共同反映,我们称之为”地震组异常”。本文着重介绍了我国华北和西南地区三组强震的地形变异常。地震组的地形变异常曲基本特征是:异常的时间跨度大,分布范围广,群体出现。异常的种类有两种:一种是速率异常,另一种是形态异常。地震组的地形变异常,可以作为地震组预测的重要依据。
Among various anomalies of crustal deformation, some anomalies couldn't belong only to one earthquake, but they are common reflection of one group of earthquakes, which are called 'anomalies of earthquake group'. In this paper, the crustal deformation anomalies with three groups of strong earthquake occurred in North China and Sourh--West China are reported. The main characteristics of the crustal deformation anomalies of earthquake groups are: the time span of anomalies is large, the distribution of anomalies is extensive and the anomalies occur in group. These anomalies can be divided into two kinds: one is rate anomaly, another is morphologic anomaly. The crustal deformation anomalies of earthquake group can be as an important basis for the prediction of earthquake group.
出处
《地壳形变与地震》
CSCD
1993年第3期47-51,共5页
Crustal Deformation and Earthquake
关键词
地形变
地震组
地壳
地震前兆
crustal deformation
earthquake group
anomaly
