黄骅井水位阶变与郯庐带地震活动关系  

Relationship between Huanghua Well Level Step Change and Seismic Activity Of the Tanlu Seismic Belt

作　　者：丁志华[1] 张子广[1] 盛艳蕊[1] DING Zhi-hua;ZHANG Zi-guang;SHENG Yan-rui(Hebei Earthquake Agency,Shijiazhuang 050021,China)

机构地区：[1]河北省地震局,石家庄050021

出　　处：《华北地震科学》2018年第2期47-51,共5页North China Earthquake Sciences

基　　金：河北省地震局科技星火计划项目(DZ20140714049;DZ20160406028)

摘　　要：根据水位阶变幅度与含水层应力变化关系,通过潮汐应力计算了黄骅井水位正常变化幅度,确定黄骅井水位阶变标准;根据此标准统计黄骅井水位阶变日频次、月频次、阶变幅度,总结其特征,并结合郯庐带地震活动情况进行分析,发现黄骅井水位阶变与郯庐带地震活动有一定的对应关系:水位阶变频次较高、阶变幅度较大时段,郯庐带地震活动较活跃,但单次阶变与单个地震的对应率较低。研究结果为东部地区地震的中短期预报提供了一定的依据。The step changes of Huanghua well water level since 2007 are studied and their normal amplitude are calculated through solid tidal stress analysis,and then the standard of the Huanghua well level step change is set on basis of the result.According to this standard,the daily frequency,the monthly frequency and the amplitude of the Huanghua well level step change are summarized and its characteristics are studied combined with seismic activity of Tanlu seismic belt.The results show that there is a certain relationship between the step change of water level of Huanghua well and the seismic activity of Tanlu seismic belt:the seismic activity of the Tanlu seismic belt is more active during the higher frequency and the higher step change amplitude,however,the corresponding rate of single step change and single earthquake is lower.The results may provide some basis for the prediction of earthquake in the eastern region.

关 键 词：黄骅井 水位阶变 潮汐应力 郯庐带 

分 类 号：P315.7[天文地球—地震学]