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| 台湾地区地震活动的时间多分形特征研究 | |
| 引用本文： | 许建东,郑魁香,燕云鹏,董瑞树.台湾地区地震活动的时间多分形特征研究[J].地震研究,2003,26(4):301-307. |
| 作者姓名： | 许建东 郑魁香 燕云鹏 董瑞树 |
| 作者单位： | 1. 中国地震局地质研究所,北京100029 2. 台湾高苑技术学院土木工程系,台湾高雄 3. 中国国土资源航空物探遥感中心，北京100083 |
| 基金项目： | 地震科学联合基金资助 (编号 :10 0 0 70 ) |
| 摘 要： | 利用板块构造、活断层分布、地壳运动这三个方面的最新资料将台湾地区划分为东、西两个地震区和六个地震带。对各地震带11a来的地震目录计算了广义维数Dq和多标度分形谱f(α)，然后绘制成Dq—q曲线和多标度分形谱f(α)—α以及分维时程曲线。综合分析后发现：(1)地震活动的时间结构是多分形而非单一分形结构；(2)台湾地区在大震前后的1～2a内，大震所在的地震带内地震时间结构的Dq—q曲线和多标度分形谱f(α)—α大都出现异常形态；(3)功时程曲线分析可以为强震的时间预报提供有效的客观依据。 |
| 关 键 词： | 台湾省 地震活动 多分形 时程曲线 地震地质学 地震目录 |
Study of Temporal Multifractal Characteristics of the Seismic Activities in Taiwan Area |
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| Xu Jiandong,Zheng kuixiang,Yan Yunpeng,Dong Ruishu.Study of Temporal Multifractal Characteristics of the Seismic Activities in Taiwan Area[J].Journal of Seismological Research,2003,26(4):301-307. | |
| Authors: | Xu Jiandong Zheng kuixiang Yan Yunpeng Dong Ruishu |
| Institution: | Xu Jiandong 1 Zheng kuixiang 2 Yan Yunpeng 3 Dong Ruishu 1 |
| Abstract: | Through the analysis of plate tectonics, the distribution of active faults and crustal movement, the Taiwan area is divided into two seismic regions and six seismic belts. Using the earthquake catalog of Taiwan area in 11 years, the aulthor calculated the multifractal dimensions D_q and f(a) of six seismic belts respectively. Then D_q-q curves, multiscale fractal charts f(a)-a and D_q-t curves are plotted. After integrated analyses, the following conclusions are drawn: (1) the temporal structure of earthquakes is not single fractal but multifractal; (2) within 1-2 years before and after a major earthquake in Taiwan, an abnormal shape appeared for most of D_q-q curves and f(a)-a plots in each seismic belt where the earthquake occurred; (3) the pattern of D_q-t curves is a good indicator for the time prediction of strong earthquake events. |
| Keywords: | multifractal time-history curves Taiwan area |
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