【摘要】 在系统分析并筛选出华北地区地震频度、地震活动标度、mf值、调制比、b值、D值、η值、地震活动强度熵和地震活动时间熵等映震较好的9项测震学参数基础上,应用综合异常指数方法,分别计算了它们各自的地震异常指数时序值,进而合成得到华北地区测震学综合异常指数时序曲线,通过研究其地震短期异常特征,给出了华北地区ML≥5.8地震短期综合预测的判据指标,经R值评分检验表明,该指标具有较好的地震预测效能。更多还原

【Abstract】 Based on systematic analysis,nine seismometry parameters that response earthquakes well in North China are selected,which are seismic frequency,seismicity scale,mf-value,b-value,D-value,η-value,seismicity intensity entropy and seismicity time entropy.Using synthetic anomaly index method,we calculated their seismic anomaly index values separately and synthesized these values into a chronogenesis curve.After studying its short-term anomaly characteristics to earthquakes,the criterion index for M_L≥5.8 earthquakes in North China is obtained.The R-value test indicts that it has good prediction effect.更多还原