摘要
2008年5月12日汶川8.0级特大震发生前,云南昭通水富井水位测值出现长时间、大幅度趋势下降异常。在排除降雨影响后,通过异常形态、持续时间、观测点所处构造分析了该异常与汶川地震的关系,表明了在强震和大震孕震阶段存在水位长期异常。
The value of water level in groundwater at Shuifu station in Zhaotong city Yunnan province appeared trend descend anomaly before the MS8.0 Wenchuan earthquake in May 12,2008.The anomaly shows characteristics with long-term anomaly and large extend.Obviated the infection of rainfall,the relationship between this anomaly and the Wenchuan earthquake is analyzed,which focused on the form of the anomaly,the duration of anomaly and the construction of the Shuifu station.The results show that long-term water level anomalies exist in the strong earthquakes seismogenic period.
出处
《地震研究》
CSCD
北大核心
2010年第2期159-163,共5页
Journal of Seismological Research
基金
云南省地震监测预报研究专项(JCYB-20080601-1)
中国地震局2009年度震情跟踪定向工作任务(2009010102)资助
关键词
汶川地震
水位异常
云南
Wenchuan earthquake
water level anomaly
Yunnan
