【摘要】 对海原台CZB-1型竖直摆钻孔倾斜仪记录到的地表倾斜方向的异常变化进行了分析,同时对该台YRY-4型分量应变仪依据自检方法表现出的压缩及伸张性异常进行了提取,得出以上两测项观测资料在宁夏南部发生的3次Ms3.0级以上有感地震的2次地震前出现了一定的异常信息,与地震有所对应。更多还原

【Abstract】 The anomalies of the surface tilt directions recorded by CZB-1 Vertical Pendulum Tiltmeter in Haiyuan seismic station are analyzed,and the compressed and stretched anomalies recorded by YRY-4 Component Strainmeter are chosen,and found these data presented anomalies just before two earthquakes with Ms≥3.0 occurred in southern Ningxia,and this shows that the data are corresponded to the earthquakes.更多还原