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| 汶川地震前后重庆地区地壳运动特征分析 | |
| 引用本文： | 陈涛,朱丽霞,占伟,王紫燕,赵斌.汶川地震前后重庆地区地壳运动特征分析[J].大地测量与地球动力学,2011,31(6):54-57. |
| 作者姓名： | 陈涛 朱丽霞 占伟 王紫燕 赵斌 |
| 作者单位： | 1. 重庆市地震局,重庆,401147 2. 中国地震局第一监测中心,天津,300180 3. 福建省地震局,福州,350000 4. 中国地震局地震研究所,武汉,430071 |
| 摘 要： | 通过处理重庆GPS观测网2008年2月—2010年10月的观测数据,得到该地区12个测站的汶川地震同震位移、地震前后跨断层基线时间序列,及相对于WUHN站的水平运动场和区域无整体旋转基准下的速度场.结果表明,重庆地区的同震水平位移最大达到24 mm,最小达到7mm;汶川地震后重庆地区地壳运动整体平稳. |
| 关 键 词： | 汶川地震 同震位移 GPS 水平位移场 地壳运动 |
ANALYSIS OF CHARACTERISTICS OF CRUSTAL MOVEMENT IN CHONGQING BEFORE AND AFTER WENCHUAN EARTHQUAKE |
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| Chen Tao,Zhu Lixia,Zhan Wei,Wang Ziyan,Zhao Bin.ANALYSIS OF CHARACTERISTICS OF CRUSTAL MOVEMENT IN CHONGQING BEFORE AND AFTER WENCHUAN EARTHQUAKE[J].Journal of Geodesy and Geodynamics,2011,31(6):54-57. | |
| Authors: | Chen Tao Zhu Lixia Zhan Wei Wang Ziyan Zhao Bin |
| Institution: | 1)Earthquake Administration of Chongqing Municipality,Chongqing 401147 2)First Crust Monitoring and Application Center,CEA,Tianjin 300180 3)Earthquake Administration of Fujian Province,Fuzhou 350000 4)Institute of Seismology,China Earthquake Administration,Wuhan 430071 |
| Abstract: | By processing the observation data of the GPS network in Chongqing from February,2008 to October,2010, the following data were obtained: the coseismic displacement of 12 GPS stations in this area, the time series of cross fault baseline length before and after Wenchuan earthquake, the horizontal movement field of Chongqing GPS stations related to WUHN and the horizontal movement rates of Chongqing under the regional NNR frame. The results show that the maximum of the coseismic horizontal displacement in Chongqing is 24 mm, and the minimum is 7 mm.After that event, the crustal movement in Chongqing has been steady as a whole. |
| Keywords: | Wenchuan earthquake coseismic displacement GPS horizontal movement rate field crustal movement |
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