| 大华北地区应力场在汶川地震时的变化研究 |
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| 引用本文： | 杨从杰,田韬,孟科,肖飞.大华北地区应力场在汶川地震时的变化研究[J].地震地磁观测与研究,2011,32(5):34-37. |
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| 作者姓名： | 杨从杰 田韬 孟科 肖飞 |
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| 作者单位： | 中国南京210014 江苏省地震局 |
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| 摘 要： | 利用大华北地区在汶川8级地震时有水位阶变的31口并孔的观测资料,通过计算各井水位系统的观测格值,进而估算了震时引起大华北地区应力场的调整变化.研究发现汶川地震后大华北中部地区的压应力得到增强,大华北东部和南部地区则表现为应力降低,对未来大华北地区的地震危险性预测应具有一定参考价值.
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| 关 键 词： | 汶川地震 水位阶变 应力场 |
Research on stress field variation in North China area with the Wenchuan earthquake |
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| Yang Congjie,Tian Tao,Meng Ke,Xiao Fei.Research on stress field variation in North China area with the Wenchuan earthquake[J].Seismological and Geomagnetic Observation and Research,2011,32(5):34-37. |
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| Authors: | Yang Congjie Tian Tao Meng Ke Xiao Fei |
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| Institution: | (Earthquake Administration of Jiangsu Province, Nanjing 210014, China) |
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| Abstract: | Based on the observational data of co-seismic step variations of water level at 31 wells at the time of the Wenchuan earthquake, the adjustment variation of co-seismic stress field in North China has been calculated through calculating the observational calibration value of well water level system in paper. The result shows that the pressure stress in Middle China is strengthened, and the stress in East China and South China is decreased, all these will have some referential significance for predicting earthquake in North China. |
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| Keywords: | Wenchuan earthquake the step variations of water level stress field |
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