Rupture process of the Chi-Chi (Taiwan) earthquake in 1999
文献类型：期刊论文
| 作者 | Wang, WM; Zhao, LF; Li, J; Yao, ZX |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2005 |
| 卷号 | 48期号:1页码:132-147 |
| 关键词 | Chi-chi Earthquake Coseismic Displacement Rupture Process Ra Method |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | The rupture process of the 1999 Chi-Chi, Taiwan earthquake is investigated by using co-seismic surface displacement GPS observations and far field P-wave records. In according to the tectonic analysis and distributions of aftershocks, we introduce a three-segment bending fault plane into our model. Both elastic half-space models and layered-earth models are employed to invert the distribution of co-seismic slip along the Chi-Chi earthquake rupture. The results indicate that the shear slip model can not fit horizontal and vertical co-seismic displacements simultaneously, unless we add the fault-normal motion (tensile component) to inversion. And then, the Chi-Chi earthquake rupture process is obtained by inversion using the seismograms and GPS observations. Antidilatational fault normal motions determined by inversion, concentrating on the shallow northern bending fault where the surface earthquake ruptures, reveal more complexity and the developed flexural slip folding structures than the other portions of the rupture zone. For understanding the perturbation of surface displacements caused by near-surface complex structures, we have taken a numerical test to synthesize and inverse the surface displacements for a pop-up structure that is composed of a main thrust and a back thrust. Our result indicates that the pop-up structure, the typical shallow complex rupture that occurred in the northern bending fault zone, can be modeled better by a thrust fault added a negative tensile component than by a simple thrust fault. We interpret the negative tensile distributions, that concentrate on the shallow northern bending fault, as a synthetic effect including the complexities of property and geometry of the rupture. The earthquake rupture process also exhibits more spatial and temporal complexities at the northern bending fault. And the results clearly show an inverse correlation between the aftershock distribution and the mainshock slip. |
| WOS关键词 | COSEISMIC DISPLACEMENTS ; SLIP DISTRIBUTION ; BENEATH TAIWAN ; HALF-SPACE ; GPS DATA ; FAULT ; DEFORMATION ; INVERSION ; MODEL ; ZONE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000226574900019 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65260]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang, WM |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Qinghai Tibet Plateau, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, WM,Zhao, LF,Li, J,et al. Rupture process of the Chi-Chi (Taiwan) earthquake in 1999[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2005,48(1):132-147. |
| APA | Wang, WM,Zhao, LF,Li, J,&Yao, ZX.(2005).Rupture process of the Chi-Chi (Taiwan) earthquake in 1999.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,48(1),132-147. |
| MLA | Wang, WM,et al."Rupture process of the Chi-Chi (Taiwan) earthquake in 1999".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 48.1(2005):132-147. |
入库方式： OAI收割
来源：地质与地球物理研究所
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