摘要
根据建立的数学模型,对山西地区跨断层观测资料进行整理计算,得到断层形变速率、异常强度值、异常强度等值线和区域性异常变化的时序曲线,并根据断层形变异常强度值及时空演化等特征,结合山西地区中、强地震,研究断层形变异常强度与地震的关系,发现在山西地区发生MS≥4.0地震前1年左右或稍长时间,断层形变异常强度均出现强烈异常,表现为R>5,可以作为中、强地震孕育发生的前兆标志。
This paper mainly based on the mathematical model of Shanxi area observation data collected across the fault calculation, get the timing curve of fault deformation rate, abnormal intensity value, intensity of anomaly contour map and regional abnormal change, and according to the characteristic of the air and the evolution of fault deformation anomaly intensity values, in combination, strong earthquake in Shanxi area the relationship between research, then the anomaly intensity of fault deformation and earthquake, found that MS ≥ 4 earthquake occurred in Shanxi area about 1 years ago or a long time, the anomaly intensity of fault deformation anomaly appeared strong performance for R〉 5, can be used as a strong earthquake occurrence, the precursory mark.
出处
《地震地磁观测与研究》
2015年第3期14-20,共7页
Seismological and Geomagnetic Observation and Research
基金
中国地震局2013年地震科研监测预报合同制课题部分内容
关键词
断层速率
形变异常强度
异常强度等值线
地震
fault rate
deformation anomaly intensity
anomaly intensity contour
earthqu
