| 地震空间分布多分维数的计算及初步应用 |
| |
| 引用本文： | 李东升,郑兆苾,汪秉宏.地震空间分布多分维数的计算及初步应用[J].地震,1995(2):143-149. |
| |
| 作者姓名： | 李东升 郑兆苾 汪秉宏 |
| |
| 作者单位： | 安徽省地震局
中国合肥230031(李东升，郑兆苾)，中国科技大学 中国合肥230026(汪秉宏) |
| |
| 摘 要： | 本文简要介绍了计算多分维数的推广G-P法;讨论了无标度区的选取,认为无标度的上限受边界效应的影响,下限受定位精度的限制;最后给出中国东部几个地区的地震多分维谱及其随时间的变化,结果表明,这些地区的中强震之前多分维数D_q(q=-2,0,2)均有下降过程,特别是q<0的D_q值在震前有明显变化(变化幅度在0.4以上)。这显示D_q谱较好地揭示了震前地震空间分布的演化。
|
| 关 键 词： | 预报效能 地震 空间分布 多分维数 地震空间 |
MULTIFRACTAL CALCULATION AND APPLICATION OF SPATIAL DISTRIBUTION OF EARTHQUAKES |
| |
| Li Dongsheng Zheng Zhaobi.MULTIFRACTAL CALCULATION AND APPLICATION OF SPATIAL DISTRIBUTION OF EARTHQUAKES[J].Earthquake,1995(2):143-149. |
| |
| Authors: | Li Dongsheng Zheng Zhaobi |
| |
| Institution: | Li Dongsheng Zheng Zhaobi(Seimological Bureauu of Anhui Province)Wang Binghong(University of Science and Technology of China) |
| |
| Abstract: | The extended G-P method for calculating the multifractals is briefly introduced in this paper, and the determination of the non-scaled region is also discussed. The authors believe that the non-scaled region is limited by location errors of epicenters and the boundary effect of the studied region. The observed Dq-t curves from the eastern region in China show that Dq values reduced before the moderate or strong earthquakes occurred in these regions, especially the variations of Dq (q< 0) are larger than those of Dq (q >0). The results show that Dq spectramay reveal some features of spatial distribution of earthquakes. |
| |
| Keywords: | Prediction ability Spatial distribution of earthquakes Multifractals |
| 本文献已被 CNKI 等数据库收录！ |
