摘要
本文分析了１９９１年１月５日缅甸７．６级大震前，云南省西部水化网观测到的水化异常，这些异常不仅有水氡，还有水汞、ＣＯ２、Ｃａ（＋＋）、Ｍｇ（＋＋）和Ｃｌ－等，异常的时间不仅有中长期，还有短临异常。文中根据观测事实指出，一次强烈地震发生之前，水化学的异常范围不仅仅在距震中２００公里的范围之内，甚至在距震中５００公里的范围内也有分布。
The hydrochemical anomalies recorded by hydrochemical observation network in Yunnan West before 7. 6 earthquake in Burma, on Jan. 5,1991, were analysed. The results show that theanomalies include not only radon anomaly,but also Hg、CO2、Ca(+2).Mg(+2) and Cl- anomaly. And anomalous time is long-medium and short-impending term.The author put reticularly the anomalous distribution within not only 200km,but only 500km.
出处
《高原地震》
1995年第2期55-60,共6页
Plateau Earthquake Research
关键词
缅甸7.6级地震
水化学
中长期异常
短临异常
震中距
Burma earthquake with 7. 6 Hydrochemistry Medium-long term anomaly Short-impending anomaly Epicentral distance
