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| Study of main body element of crustal strain and its relationship with moderate-strong earthquakes | |
| 作者姓名： | 陈兵 张晓亮 王庆良 刘文义 王敏 薄万举 |
| 作者单位： | [1]Second Crustal Monitoring and Application Center, China Earthquake Administration, Xi＇an 710054, China [2]Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China [3]First Crustal Monitoring and Application Center, China Earthquake Administration, Tianjin 300180, China |
| 基金项目： | National Natural Science Foundation of China （40274023） and National Program for Key Science ＆ Technology Projects （2004BA601B01-02-01）. |
| 摘 要： | In this paper, progress in strain study of blocks and faults by GPS data are discussed, and the concept that active structures between blocks are the main body of crustal strain is clarified. By energy transfer principle of elastic mechanics, the relation between strain around faults and tectonic force on fault surfaces is set up and main body element model of crustal strain is constructed. Finally, the relation between mechanical evolution of model and seismogenic process of Kunlun earthquake （Ms=8.1） is discussed by continuous GPS data of datum stations. The result suggests that the relatively relaxed change under background of strong compressing and shearing may help to trigger moderate-strong earthquakes. |
| 关 键 词： | 地壳应变 GPS 全球定位系统 地震 地应力 |
| 文章编号： | 1000-9116（2006）01-0054-08 |
| 收稿时间： | 2005-04-01 |
| 修稿时间： | 2005-09-26 |
Study of main body element of crustal strain and its relationship with moderate-strong earthquakes |
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| CHEN Bing,ZHANG Xiao-liang,WANG Qing-liang,LIU Wen-yi,WANG Min,BO Wan-ju.Study of main body element of crustal strain and its relationship with moderate-strong earthquakes[J].Acta Seismologica Sinica(English Edition),2006,19(1):54-61. | |
| Authors: | CHEN Bing ZHANG Xiao-liang WANG Qing-liang LIU Wen-yi WANG Min BO Wan-ju |
| Institution: | 1. Second Crustal Monitoring and Application Center, China Earthquake Administration, Xi 'an 710054, China 2. Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China 3. First Crustal Monitoring and Application Center, China Earthquake Administration, Tianjin 300180, China |
| Abstract: | In this paper, progress in strain study of blocks and faults by GPS data are discussed, and the concept that active structures between blocks are the main body of crustal strain is clarified. By energy transfer principle of elastic mechanics, the relation between strain around faults and tectonic force on fault surfaces is set up and main body element model of crustal strain is constructed. Finally, the relation between mechanical evolution of model and seismogenic process of Kunlun earthquake (MS=8.1) is discussed by continuous GPS data of datum stations. The result suggests that the relatively relaxed change under background of strong compressing and shearing may help to trigger moderate-strong earthquakes. |
| Keywords: | main body element of crustal strain tectonic force on fault surface energy transfer GPS benchmark site postseismic relative relaxation |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |