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| Quantitative analysis on tectonic deformation of active rupture zones | |
| 引用本文： | 江在森,牛安福,王敏,黎凯武,方颖,张希,张晓亮. Quantitative analysis on tectonic deformation of active rupture zones[J]. 地震学报(英文版), 2005, 18(6): 656-665. DOI: 10.1007/s11589-005-0093-x |
| 作者姓名： | 江在森 牛安福 王敏 黎凯武 方颖 张希 张晓亮 |
| 作者单位： | Institute of Earthquake Science China Earthquake Administration Beijing 100036 China，China Earthquake Networks Center China Earthquake Administration Beijing 100036 China，Institute of Earthquake Science China Earthquake Administration Beijing 100036 China，Institute of Earthquake Science China Earthquake Administration Beijing 100036 China，Institute of Earthquake Science China Earthquake Administration Beijing 100036 China，Second Crust Monitoring and Application Center China Earthquake Administration Xi′an 710054 China，Second Crust Monitoring and Application Center China Earthquake Administration Xi′an 710054 China |
| 基金项目： | Key scientific research project from China Earthquake Administration during the tenth Five-year Plan (10-5-08-04)，sate key scientific research project (2004BA601B01-02-01). |
| 摘 要： | Introduction The Global Position System (GPS) may provide information about the crust movement of high precision in a large area, which significantly improve the capability of monitoring crustal movement over the area. In the last decade, studies on the global plate movement, the large scale block motions, the high-resolution crust movement of related monitored regions and tectonic de-formation fields have become the hotspot of spatial geodesy (ZHU et al, 2003; Wang et al, 2001; HUANG et… |
| 收稿时间： | 2004-09-29 |
| 修稿时间： | 2005-10-09 |
Quantitative analysis on tectonic deformation of active rupture zones |
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| JIANG Zai-sen,NIU An-fu,WANG Min,LI Kai-wu,FANG Ying,ZHANG Xi,ZHANG Xiao-liang. Quantitative analysis on tectonic deformation of active rupture zones[J]. Acta Seismologica Sinica(English Edition), 2005, 18(6): 656-665. DOI: 10.1007/s11589-005-0093-x | |
| Authors: | JIANG Zai-sen NIU An-fu WANG Min LI Kai-wu FANG Ying ZHANG Xi ZHANG Xiao-liang |
| Affiliation: | 1. Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China 2. China Earthquake Networks Center, China Earthquake Administration, Beijing 100036, China 3. Second Crust Monitoring and Application Center, China Earthquake Administration, Xi'an 710054, China |
| Abstract: | Based on the regional GPS data of high spatial resolution, we present a method of quantitative analysis on the tec-tonic deformation of active rupture zones in order to predict the location of forthcoming major earthquakes. Firstly we divide the main fault area into certain deformation units, then derive the geometric deformation and relative dislocation parameters of each unit and finally estimate quantitatively the slip and strain rates in each segment of the rupture zone. Furthermore, by comparing the consistency of deformation in all segments of the whole rupture zone, we can determine the possible anomalous segments as well as their properties and amplitudes. In analyzing the eastern boundaries of Sichuan-Yunnan block with the GPS velocity data for the period of 1991~2001, we have discovered that the Mianning-Ningnan-Dongchuan segment on the Zemuhe-Xiaojiang fault zone is relatively locked and the left-lateral shear strain rate here is higher. |
| Keywords: | active rupture zone tectonic deformation GPS prediction of strong earthquake location |
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