节点文献
鄂西及邻区地震时空丛集的物理分形及R/S分析
PHYSICAL FRACTAL AND R/S ANALYSIS OF TIME AND SPACE CLUSTERING OF EARTHQUAKES IN WESTERN HUBEI AND ITS SURROUNDING AREAS
【摘要】 运用物理分形和自仿射R/S分析方法,对鄂西及邻区历史地震(M≥4.5)和1970—2010年间地震(M≥1.0)进行分析,得到了各子震级的自然周期、分维值和无标度区间,并求出了地震频度序列的H值(H=0.79)和时间间隔序列的H值(H=0.87);揭示了该区地震活动的自相似性和层次结构。
【Abstract】 The historical earthquake catalogues(M≥4.5)and 1970—2010 earthquake catalogues(M≥1.0)in western Hubei and its surrounding areas are analyzed with the methods of physical fractal and R/S analysis.Accordingly,the natural cycle,fractal dimension and fractal scale-less range form every subset of small earthquakes are obtained,and the Hurst exponent(0.79) of earthquake frequency sequences and Hurst exponent(0.87) of earthquake timing interval sequences are obtained as well.Thereby the self-similarity and hierarchical structure of these earthquakes are revealed.
【关键词】 地震;
鄂西;
分形;
重标极差分析;
H值;
【Key words】 earthquake; western Hubei; fractal; rescaled range analysis; H exponent;
【Key words】 earthquake; western Hubei; fractal; rescaled range analysis; H exponent;
【基金】 国家自然科学基金重点项目(40730317);中国长江三峡工程开发总公司科技项目(SXSN-2377)
- 【文献出处】 大地测量与地球动力学 ,Journal of Geodesy and Geodynamics , 编辑部邮箱 ,2012年01期
- 【分类号】P315.08
- 【被引频次】2
- 【下载频次】90