【摘要】 采用临汾台SSQ-2I型石英摆和VP型宽带垂直摆倾斜仪观测资料,运用原始形态曲线方法,对2010年1月24日山西河津4.8级地震前观测曲线进行分析。结果表明:在震前两种观测手段都记录到明显的前驱波,其形态特征与岩石力学中的粘滑事件非常相似,应是此次地震前显著的短临异常信息,同时给出了产生慢粘滑现象的机理解释。更多还原

【Abstract】 Using the observation data recorded by SSO-2I quartz horizontal pendulum and VP w ild band vertical pendulum tiltmeter,we analyzed the observation curves before Hejin M4.8 earthquake in Shanxi on Jan. 24,2010 by the original shape curve method. The result showed that there were obvious precursor wave before Hejin M4.8 earthquake on the observation curves recorded by two observational means. The morphological characteristics of precursor wave were similar with the stick-slip of the rock mechanics,which may was the short impending anomaly information of the Hejin M4. 8 earthquake. We also gave the mechanism explanation of the slow stick slip.更多还原