甘肃中东部地区水化异常前兆在祁连山东段地区中强地震前的异常特征  

HYDROCHEMICAL ANOMALOUS CHARACTERISTICS IN THE MIDDLE, EASTERN GANSU BEFORE THE MODERATE EARTHQUAKES IN THE EAST OF QILIAN MOUNTAIN

作　　者：张昱[1] 张苏平[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000

出　　处：《内陆地震》2003年第3期222-227,共6页Inland Earthquake

摘　　要：分析了1995年7月22日甘肃省永登地震、1996年6月1日天祝地震和2000年6月6日景泰地震前,甘肃省中东部地区的连城、榆中、通渭温泉水汞、武山等水化测点的资料变化情况,发现这3次地震前几个测点均有较明显的变化,而且通渭水汞、武山22号井和武山1号泉在地震前的反映比较明显。By analyzing the hydrochemical data recorded by the stations in the middle, eastern Gansu before the shocks of Yongdeng on July 22, 1995, Tianzhu on June 1, 1996 and Jintai on June 6, 2000, it is found that there were obvious hydrochemical anomalous changes in the hot springs at Liancheng, Yuzhong and Tongwei as well as the Spring no.1 and Well no.22 at Wushan, especial the mercury content in the hot spring at Tongwei and the radon content in the Spring no.1 and Well no.22 at Wushan.

关 键 词：甘肃 水化异常 永登地震 天祝地震 景泰地震 水化测点 

分 类 号：P315.72[天文地球—地震学]