电子科技大学学报Issue(4)：557-562,6.DOI:10.3969/j.issn.1001-0548.2015.04.015
基于空间点模式分析的地震空间分布集中趋势特性
Study of the Central Tendency of Earthquake Based on Spatial Point Pattern Analysis
郑文锋 1李晓璐 2顾行发 1LAM Nina 2刘珊 1谢建军3
作者信息
- 1. 电子科技大学自动化工程学院 成都 611731
- 2. 路易斯安那州立大学 美国 路易斯安那 巴吞鲁日 70803
- 3. 中国科学院遥感与数字地球研究所 北京 海淀区 100101
- 折叠
摘要
Abstract
Correlations in space and time among approaching earthquakes play a fundamental role in earthquake motion trend analysis. One direct effect of the correlations is a promotion of earthquake swarms occurred in a certain region even worldwide after a strong earthquake. The variability of the random variable over space in correlations may occur in earthquake swarms after strong earthquakes. Using the classical analysis method of spatial point pattern, it is possible to introduce a measure of spatial correlation and trend between strong earthquakes and the aftershocks, through the function of mean center (MC), weighted mean center (WMC), geometric mean center (GMC) and harmonic mean center (HMC). The method of mean center functions is applied to the earthquakes of China. The result shows that in China, aftershock swarms did not evenly spread around the strong earthquakes as the mean center. And there is an obvious migration between the strong earthquakes and the mean centers position of aftershock swarms.关键词
集中趋势/地震/地震空间分布趋势/空间点模式分析/空间统计Key words
central tendency/earthquake/earthquake spatial trend/spatial point pattern analysis/spatial statistics分类
信息技术与安全科学引用本文复制引用
郑文锋,李晓璐,顾行发,LAM Nina,刘珊,谢建军..基于空间点模式分析的地震空间分布集中趋势特性[J].电子科技大学学报,2015,(4):557-562,6.
