| 湖北及邻区现代构造应力场初析 |
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| 引用本文： | 李蓉川,韩晓光. 湖北及邻区现代构造应力场初析[J]. 地震工程学报, 1984, 6(3): 92-98 |
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| 作者姓名： | 李蓉川 韩晓光 |
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| 作者单位： | 国家地震局地震研究所(李蓉川)，国家地震局地震研究所(韩晓光) |
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| 摘 要： | 本文根据湖北及邻区1969至1981年的地震资料,分别求解了三峡、麻城、蒲圻、丹江4个地区的小震综合断层面解。分析结果表明,湖北及邻区现代构造应力场是不一致的,其中鄂中—三峡地区主压应力为北北东—南南西向;鄂东地区主压应力为北东东—南西西向;鄂东南地区主压应力为北西西—南东东向;鄂西北地区主压应力为北西西—近东西向。这与本区Ms≥3.0地震的震源机制结果基本相符。这种不同方向的构造应力场,反映了我国华北、华南和西部地区构造应力场作用交界部位的一种特殊现象。
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| 收稿时间： | 1982-11-08 |
RECENT TECTONIC STRESS FIELD OF THE HUBEI PROVINCE AND ITS VICINITY |
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| Li Rongchuan and Han Xiaoguang. RECENT TECTONIC STRESS FIELD OF THE HUBEI PROVINCE AND ITS VICINITY[J]. China Earthguake Engineering Journal, 1984, 6(3): 92-98 |
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| Authors: | Li Rongchuan and Han Xiaoguang |
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| Affiliation: | Institute of seismology, State Seismological Bureau, Wuhan, China and Institute of seismology, State Seismological Bureau, Wuhan, China |
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| Abstract: | The composite fault plane solutions for earthquakes in the region of Sanxia, Macheng, Puqi and Danjiang are obtained respectively during the preiod from 1969 to 1981. The result shows that there is no uniform regional recent tectonic stress field in these areas. According to the orientation of the maximum compressive stress, the studied region can be divided approximately into four subregions. The characteristics of the stress field in the region are regarded as a particular phenomenon due to that it is located in the transition zone between Northern, Southern and Western China. |
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