摘要
利用西安数字地震遥测台网记录的宽频带数字地震资料，应用断裂力学理论与谱分析方法，首次测定了陕西地区中小地震的应力降和区域剪切应力值。结果显示陕西地区存在几个应力值较高的地区。最后对其与地质构造及地震活动性之间的关系进行了探讨。
In this paper, based on the method of spectral analysis and the theory of fracture mechanics, by using the broad band digital data recorded by Xi′an telemetry seismic network, the stress drop and regional shear stress of moderate and small earthquakes in Shanxi Province are determined firstly. The results show that there are several points of high regional shear stress in Shanxi Province. The relationship among these abnormal points and geological structures and seismic activity is discussed.
出处
《地壳形变与地震》
CSCD
1999年第1期65-70,共6页
Crustal Deformation and Earthquake
关键词
波谱分析
应力场
地震活动性
宽频带
地震数据
spectral analysis, digital seismic network, stress field, seismic activity
