论文部分内容阅读
1997年5月25日张家口Ms4．2地震是1997年上半年首都圈地区发生的显著地震，虽然该地震震级不高，但地下流体的短临异常十分显著。作者主要介绍了该地震前地下流体短临异常的特征及由此得到的科学启示。
On May 25, 1997, the Ms 4.2 earthquake in Zhangjiakou was a significant earthquake in the capital area in the first half of 1997. Although the magnitude of the earthquake was not high, the short-term anomalies of the underground fluid were significant. The author mainly introduces the characteristics of short-term anomaly of subsurface fluid before the earthquake and the scientific enlightenment.