摘要
分析克拉玛依后山2号钻孔倾斜观测数据的可靠性后确认潮汐因子基本稳定。排除人为影响、仪器故障和天气变化等干扰因素,提升震前异常识别的可信度,并对典型干扰和震前异常特征进行分类、量化分析。通过R值评分进行最佳阈值的确定和检验,表明克拉玛依后山2号钻孔倾斜异常漏报率较低。
After analyzing the reliability of the tilt observation data of No.2 borehole in the back mountain of Karamay,it is confirmed that the tidal factor is basically stable.By eliminating the interference factors such as human influence,instrument failure and weather change,the credibility of anomaly identification before earthquakes is improved,and the typical interference and anomaly characteristics before earthquakes are classified and quantitatively analyzed.The determination and test of the optimal threshold by R value score show that the missing rate of inclination anomaly of No.2 borehole in Houshan,Karamay is low.
作者
毕卉娟
沙勒塔那提·索尔坦别克
周斌
李娇
BI Hui-juan;Shaletanati Suoertanbieke;ZHOU Bin;LI Jiao(Karamay Earthquake Monitoring Center Station,Earthquake Agency of Xinjiang Uygur Autonomous Region,Karamay 834000,Xinjiang,China)
出处
《内陆地震》
2025年第4期407-412,共6页
Inland Earthquake
关键词
钻孔倾斜
潮汐因子
R值评分
预报效能
Borehole inclination
Tidal factor
R-value scoring method
Forecast performance
