| 地震不稳定破裂扩展与前兆过程 |
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| 引用本文： | 苏有锦.地震不稳定破裂扩展与前兆过程[J].地震研究,1999,22(1):81-88. |
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| 作者姓名： | 苏有锦 |
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| 作者单位： | 云南省地震局 |
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| 基金项目： | 国家地震局“八·五”重点攻关项目资助 |
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| 摘 要： | 本讨论了地震的深部滑动破裂扩展过程模型和它的前兆意义。结果表明：该模型预示着一个失稳加速破裂扩展的阶段；这个阶段时间尺度（前兆时间）很大程度上依赖于地震孕育的介质环境和应力环境；由此产生的地表应力－应变场在空间上出现反向发展方向，可能是一种非常有意义的前兆特征。
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| 关 键 词： | 破裂扩展 地震不稳定 前兆过程 地震前兆 |
THE INSTABLE RUPTURE PROGRESS OF EARIHQUAKE AND PRECURSORY PROGRESS |
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| Su Youjin.THE INSTABLE RUPTURE PROGRESS OF EARIHQUAKE AND PRECURSORY PROGRESS[J].Journal of Seismological Research,1999,22(1):81-88. |
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| Authors: | Su Youjin |
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| Abstract: | In this paper, deep seismic slip rupture progress model and its precursory significance are discussed. The results show that the model indicates a stage of instable acceleration rupture progress, in which the time length (defined as precursory time) depends on greatly the medium and stress environments of earthquake preparation; the surface stress-strain field generated in the stage is changed reversedly in space, which might be a significant precursory. |
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| Keywords: | Rupture progress seismic instability and precursory process |
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