| 全球及各地震区带强震活动周期特征 |
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| 引用本文： | 宋治平,尹继尧,薛艳,张国民,刘杰,朱元清,张永仙.全球及各地震区带强震活动周期特征[J].地球物理学报,2013,56(6):1868-1876. |
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| 作者姓名： | 宋治平 尹继尧 薛艳 张国民 刘杰 朱元清 张永仙 |
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| 作者单位： | 1. 中国地震台网中心, 北京 100045;
2. 中国石油新疆油田公司, 克拉玛依 834000;
3. 上海市地震局, 上海 200062;
4. 中国地震局地震预测研究所, 北京 100036 |
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| 基金项目： | 国家重点基础研究发展计划"973"项目(2008CB425704)资助. |
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| 摘 要： | 基于地震活动周期谱的Morlet小波分析,确定了全球和13个地震区带的强震活动周期及其置信度.结果显示全球地震活动存在着多个显著稳定的活动周期,而各地震区带除了存在着与全球整体地震活动基本一致的周期外,还存在着特有的活动周期成分.本文研究为探讨全球及区域强震活动趋势及其动力源提供了基础数据.
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| 关 键 词： | 全球及地震区带地震活动 地震活动周期特征 小波分析 显著性检验 |
| 收稿时间： | 2012-02-27 |
The global and sub-zone period characteristics for large earthquakes |
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| SONG Zhi-Ping,YIN Ji-Yao,XUE Yan,ZHANG Guo-Ming,LIU Jie,ZHU Yuan-Qing,ZHANG Yong-Xian.The global and sub-zone period characteristics for large earthquakes[J].Chinese Journal of Geophysics,2013,56(6):1868-1876. |
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| Authors: | SONG Zhi-Ping YIN Ji-Yao XUE Yan ZHANG Guo-Ming LIU Jie ZHU Yuan-Qing ZHANG Yong-Xian |
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| Institution: | 1. China Earthquake Networks Center, Beijing 100045, China;
2. PetroChina Xinjiang Oilfield Company, Karamay 834000, China;
3. Earthquake Administration of Shanghai Municipality, Shanghai 200062, China;
4. Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China |
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| Abstract: | Based on the Morlet wavelet analysis of the seismic period spectrum, periods and their confidence degrees of large earthquakes were determined globally and for 13 seismic zones as well. The results show that multiple significantly steady seismic periods exist for global seismicity, while for various seismic zones, special periods exist in addition to the global periods. This study provides basic data for investigating the global and regional trends as well as the driving forces of large earthquakes. |
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| Keywords: | Global and sub-zone seismicity Characteristics of seismic cycle Wavelet analysis Confidence test |
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