【摘要】 运用形变速率累加法对青藏决体东北缘积累近30年的6个跨断层流动水准场地观测资料进行了分析,讨论了异常信息提取的经验和方法,搜集并分析了各场地周围400 km范围内的震例,获得了形变速率累加法的应用经验与前兆异常特征:①异常累加图比原始曲线图在异常的识别上更加突出和直观;②该方法只对超出控制限较连续的异常点残差进行累加,发生间隔较长的异常点则不进行累加计算;③从异常开始到发生地震的时间上得知,该方法可作为地震中期预报指标。更多还原

【Abstract】 Six cross-fault leveling data of thirty years in northeastern margins of Qinghai-Tibet block with the method of Deformation Rate Accumulation are analyzed,and the experience and method for extracting anomaly information are discussed,the relevant earthquake cases within 400 km are gathered and analyzed,the experience and characteristics of deformation rate accumulation show: ①Anomaly accumulation chart is more prominent and intuitive than primary curve;②Only out-of-range and continuous anomaly data is cumulated,and discontinuous anomaly data isn’t cumulated;③From the time that beginning of anomaly to the earthquakes,this method can be the medium-term indicator of the earthquake prediction.更多还原