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| 由井水位资料反演大同-阳高6.1级地震前后应力场的动态演化过程 | |
| 引用本文： | 张昭栋,刘庆国,刘涛,陈殿润.由井水位资料反演大同-阳高6.1级地震前后应力场的动态演化过程[J].西北地震学报,2001,23(1):66-68. |
| 作者姓名： | 张昭栋 刘庆国 刘涛 陈殿润 |
| 作者单位： | 1. 山东省地震局, 2. 山东省建筑工程学院, 3. 山东省建设银行, |
| 摘 要： | 利用献1]给出的用井水位资料反演含水层应力变化的方法和井水位动态观测资料，反演了大同－阳高地震前后大区域应力场的动态变化特征。结果表明：应力场的零值线穿过震中区，地震前，震中区周围应力场发生转向，由正应力区变为负应力区，同时正应力的量值逐渐增大。地震发生后应力场呈缓慢变化。 |
| 关 键 词： | 地震前兆 井水水位 大同－阳高地震 应力场 含水层 |
| 文章编号： | 1000-0844(2001)01-0066-03 |
| 收稿时间： | 2000/1/10 0:00:00 |
| 修稿时间： | 2000年1月10日 |
DYNAMIC EVOLUTION OF STRESS FIELD INVERTED BY USING DATA OF WELL WATER LEVEL BEFORE AND AFTER THE DATONG-YANGGAO MS6 .1 EARTHQUAKE |
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| ZHANG Zhao-dong,LIU Qing-guo,LIU Tao and CHEN Dian-run.DYNAMIC EVOLUTION OF STRESS FIELD INVERTED BY USING DATA OF WELL WATER LEVEL BEFORE AND AFTER THE DATONG-YANGGAO MS6 .1 EARTHQUAKE[J].Northwestern Seismological Journal,2001,23(1):66-68. | |
| Authors: | ZHANG Zhao-dong LIU Qing-guo LIU Tao and CHEN Dian-run |
| Institution: | Seismological Bureau of Shandong Province, Jinan 250014, China,Architectural Engineering Institute of Shandong Province, Jinan 250014, China,Constructive Bank of Shandong Province, Jinan 250001, China and Seismological Bureau of Shandong Province, Jinan 250014, China |
| Abstract: | Dynamic change of regional stress field before and after theDatong-Yanggao earthquake is inverted by using data of well water level.In the inversion,the method inverting stress change in water bearing system in reference 1] is used.The results show that the zero value line of stress field crosses epicentral regions of the Datong MS6.1 and MS5.8 earthquakes.The stress field of periphery of the epicentral region transformed from positive stress into negative stress,and the value of the positive stress increased gradually before the earthquakes.After the earthquakes,the stress field is slow in change. |
| Keywords: | Well water level Earthquake precursor Datong Yanggao earthquake Stress field |
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