丽江7.0级大震前地震活动分形异常

英文篇名：THE SEISMIC FRACTAL ANOMALIES BEFORE LIJIANG EARTHQUAKE (M7.0)
中文刊名：地震
英文刊名：EARTHQUAKE
作者：石绍先 ; 邓志辉 ; 范杨
英文作者：Shi Shaoxian ; Deng Zhihui ; Fan Yang(Seismological Bureau of Yunnan Province ; Kunming 650041 ; China)(Institute of Geology ; State Seismological Bureau ; Beijing 100029 ; China)
中文关键词：丽江大震 ; 分形 ; 减熵过程 ; 降维过程
英文关键词：Lijiang large earthquake ; Fractal study ; Hausdoff dimension ; Correlation dimension ; Information entropy
出版日期：1997-07-26
机构：云南省地震局!中国昆明,650041,国家地震局地质研究所!中国北京,100029,云南省地震局!中国昆明,650041
年：1997
期：03
出版单位：地震

摘要

该文提供了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。
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.

引文

1对志辉,马瑾.地震活动非线性特征的研究及其在地震预报中的应用:[学位论文]北京:国家地震局地质研究所,19921～87
    2朱传镇,王琳瑛.地震活动摘值及其在地震危险性估计中应用.地震, 1988,(2): l～ 5.
    3陈.地震预报中几个科学问题讨论.中国地震,1988,4(2):1～7
    4张国民,梁北援.岩石流变模型在孕展过程和前兆研究中的应用.地震学报,1987,9(4): 384～391.
    5 Kagun Y Y,Knopoff L·Spatial distributon of earthquakes ,The two-Point corrdation function.Geophy-sics,J.Roy,Astr.Soc,1980,62.303 ～320.
    6 Kagan Y Y,Knopoff L . Spatial distribuion of earthquakes , the three-point moment function.Geophysics,J.Roy.Astr.Soc,1981,67.719～933.