| 丽江7.0级大震前地震活动分形异常 |
| |
| 引用本文： | 石绍先 邓志辉. 丽江7.0级大震前地震活动分形异常[J]. 地震, 1997, 17(3): 277-282 |
| |
| 作者姓名： | 石绍先 邓志辉 |
| |
| 作者单位： | [1]云南省地震局 [2]国家地震局地质研究所 |
| |
| 摘 要： | 该文提供１９９６年２月丽江７．０级大震前滇西北地震活动空间容量维、关联维、信息熵十分显著的异常图像；这些异常是在大震孕震区形成，应变释放加速阶段之后出现的，恰好揭示了源区、近源区大释放前的非线性变化过程。这与１９６５年以来云南及邻区８组大震前地震分形研究的结论完全一致；进一步说明地震活动分形异常对地震孕育阶段具有重要的指示意义。
|
| 关 键 词： | 地震前兆 地震活动性 分形异常 震级 |
THE SEISMIC FRACTAL ANOMALIES BEFORE LIJIANG EARTHQUAKE (M7.0) |
| |
| Shi Shaoxian, Deng Zhihui, Fan Yang. THE SEISMIC FRACTAL ANOMALIES BEFORE LIJIANG EARTHQUAKE (M7.0)[J]. China Earthguake Engineering Journal, 1997, 17(3): 277-282 |
| |
| Authors: | Shi Shaoxian Deng Zhihui Fan Yang |
| |
| Abstract: | The space Hausdoff dimension, correlation dimension and information entropy ofseismicities appeared anoma1ously in north-western Yunnan before Lijiang M7.0earthquake in February 1996- These anomalies occurred after the formation of largeearthquake preparation zone and the acceleration of energy release, which just indicates anonlinear developing process in and near the source zone before the final energy release. Itis fully agreed with the results of the fractal study before 8 large earthquakes occurred inYunnan Province and its adjacent region since l965. It is shown that the fractal anomaly ofseismicity is of important indicative significance for earthquake preparation. |
| |
| Keywords: | Lijiang large earthquake Fractal study Hausdoff dimension Correlation dimension Information entropy |
| 本文献已被 CNKI 维普 等数据库收录！ |
