论文部分内容阅读
从分析地震活动性参数变化特征的角度出发，结合实际的地震活动观测资料，对张北６．２ 级地震前河北省及邻区地震活动性参数的变化，地震序列的衰减特征进行了分析，结果表明张北６．２ 级地震前在震源区附近１００ｋｍ 和大范围地震活动性参数有长、中、短期的异常变化。张北６．２ 级地震强余震前地震活动性参数有短、临变化。
Based on the analysis of the changing characteristics of seismic activity parameters and the actual seismic activity observation data, the seismic activity parameters and the attenuation characteristics of seismic sequences in Hebei Province and its adjacent areas before the M6.2 Zhangbei earthquake are analyzed. The results show that before the M6.2 Zhangbei earthquake, there are long, medium and short-term anomalous changes in the seismic activity parameters of 100 km and a large area near the source area. The seismic activity parameters before the strong aftershock of the MS 6.2 Zhangbei earthquake have short and immediate changes.