Tracing Subsurface Fluid Anomalies Before Zhangbei-Shangyi Earthquake and Prediction of the Earthquake  

作　　者：Che Yongtai, Wang Jihua, Lin Yuanwu, Zhu Qingzhong, and Zhang PeirenInstitute of Geology, CSB, Beijing 100029, China 

出　　处：《Earthquake Research in China》1998年第4期100-108,共9页中国地震研究（英文版）

摘　　要：High-value subsurface fluid anomalies appeared in the northern part of North China region for more than two years before the Zhangbei-Shangyi earthquake. Some of the anomalies have appeared alternately and were correlated with moderate and moderately strong earthquakes in the region during the last year (1997). Typical short-term subsurface fluid anomalies have appeared in the area at 100 km ~ 200 km distance from the epicenter for two months before an earthquake. Tracing these anomalies during the last two years and repeatedly improving the knowledge of seismic regime, we have more successfully performed short-term and imminent earthquake prediction at half a month before its occurrence.High-value subsurface fluid anomalies appeared in the northern part of North China region for more than two years before the Zhangbei-Shangyi earthquake. Some of the anomalies have appeared alternately and were correlated with moderate and moderately strong earthquakes in the region during the last year (1997). Typical short-term subsurface fluid anomalies have appeared in the area at 100 km ~ 200 km distance from the epicenter for two months before an earthquake. Tracing these anomalies during the last two years and repeatedly improving the knowledge of seismic regime, we have more successfully performed short-term and imminent earthquake prediction at half a month before its occurrence.

关 键 词：EARTHQUAKE PREDICTION SUBSURFACE FLUID anomaly Zhangbei-Shangyi earthquake. 

分 类 号：P315.75[天文地球—地震学]