First, to the eight minor regions in and near Gansu Province, the background b-values are computed and the least magnitude lower-limits for the calculation of the b-values are determined. Then, the two calculation methods are compared. Finally, the relation of the b-value changes to the moderate earthquakes is discussed. The research shows that there are some abnormal changes of b value in and near epicentral regions before about half of the moderate earthquakes that are studied in this paper. The change of b value can be regarded as a reference factor for earthquake prediction.
参考文献
相似文献
引证文献
引用本文
刘江峰.甘肃及邻区b值与中强震的关系研究[J].地震工程学报,1991,13(2):29-38. Liu Jiangfeng. THE RELATION OF THE B-VALUE CHANGES TO THE MODERATE EARTHQUAKES IN AND NEAR GANSU PROVINCE[J]. China Earthquake Engineering Journal,1991,13(2):29-38.