| 重庆荣昌地区S波分裂研究 |
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| 引用本文： | 魏红梅,杨正旭.重庆荣昌地区S波分裂研究[J].防灾科技学院学报,2011,13(4):13-18. |
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| 作者姓名： | 魏红梅 杨正旭 |
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| 作者单位： | 1. 重庆市地震局,重庆,401147
2. 荣昌县地震局,重庆荣昌,402466 |
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| 摘 要： | 利用荣昌地区数字地震波资料，计算该区s波分裂参数，使用获得的s波分裂参数研究汶川地震对荣昌地区介质的影响。结果表明，汶川地震前后快波偏振方向无显著改变，均与区域范围内断裂及断层走向相关性较好；随着汶川地震的临震，延迟时间增大，而震后大约1年多的时间内，S波分裂的快、慢波延迟时间维持在较小的水平，之后延迟时间出现恢复性增...
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| 关 键 词： | S波分裂 快波偏振方向 快慢波走时差 |
Study of S-wave splitting in Rongchang,Chongqing |
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| Wei Hongmei,Yang Zhengxu.Study of S-wave splitting in Rongchang,Chongqing[J].Journal of Institute of Disaster-prevention Science and Technology,2011,13(4):13-18. |
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| Authors: | Wei Hongmei Yang Zhengxu |
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| Institution: | 1.Earthquabe administration of Chongqing,Chongqing 401147,China; 2.Earthquabe administration of Rongchang,Rongchang 402466,China) |
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| Abstract: | Use digital seismic data in Rongchang to calculate S-wave splitting parameters in this area,and then use the parameters obtained to study the effect of Wenchuan earthquake to the media in Rongchang.The result indicates that the distribution of fast shear-wave polarization direction is consistent wish the fault in this area before and after Wenchuan earthquake;delay time increased with Wenchuan earthquake approaching,and maintained at a smaller level in about one year after Wenchuan earthquake,then the delay time turned back,and the result associated with the seismic activity in this area. |
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| Keywords: | S-wave splitting fast shear-wave polarization direction delay time |
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