摘要
对云南保山滇14井1992～2004年水汞观测资料与其周围400 km范围内发生的所有MS≥5.0地震进行了研究.结果表明:在中强地震发生前,滇14井水汞存在短临异常,且异常特征清晰,异常幅度明显;所提取的短临预报指标对应地震效果较好,但对应范围受区域地质构造控制,主要对应云南西部地区及缅甸弧型构造带中的中强地震.
On the basis of 1992 -2004 mercury data observed in Dian-14 Well, Baoshan, Yunnan and Ms ≥5.0 earthquakes occurred in the area of 400 km from the well, we studied the relation between them and found the Hg data shown short-term and impending-earthquake anomalies with clear abrupt jump and obvious amplitude before the moderate and strong earthquakes. According to this we determined the short-term and impending-earthquake prediction indexes of the moderate and strong earthquakes, which corresponds to the earthquakes well, but mainly to those occurred in West Yunnan and Burma arc tectonic belt because of the control of regional geological tectonics.
出处
《地震研究》
CSCD
北大核心
2005年第4期325-329,共5页
Journal of Seismological Research
关键词
水汞异常
中强地震
短临预报
anomaly of mercury in water, moderate and strong earthquake, short-term and impendingearthquake prediction
