| 河西地区速度异常分布 |
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| 引用本文： | 王修琼,姚政生,张诚.河西地区速度异常分布[J].西北地震学报,1991,13(2):51-55. |
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| 作者姓名： | 王修琼 姚政生 张诚 |
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| 作者单位： | 国家地震局兰州地震研究所
(王修琼，姚政生)，国家地震局兰州地震研究所(张诚) |
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| 摘 要： | 本文利用联合反演的层析成象的方法,配合快速两点射线追踪法,处理了河西地区地震台网记录到的天然地震走时资料,得到了该地区中、上地壳三维速度异常分布图象,并根据反演结果,对河西地区地震危险性进行了初步探讨。
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| 关 键 词： | 地震 速度 异常分布 |
| 收稿时间： | 1990/6/20 0:00:00 |
THE VELOCITY ANOMALY DISTRIBUTION IN HEXI AREA,GANSU PROVINCE |
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| Wang Xiuqiong,Yao Zhengsheng and Zhang Cheng.THE VELOCITY ANOMALY DISTRIBUTION IN HEXI AREA,GANSU PROVINCE[J].Northwestern Seismological Journal,1991,13(2):51-55. |
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| Authors: | Wang Xiuqiong Yao Zhengsheng and Zhang Cheng |
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| Institution: | Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China and Earthquake Research Institute of Lanzhou, SSB, Gansu, China |
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| Abstract: | Using the method of seismic tomographic image of joint inversion and rapid two-point ray-tracing method to process the arrival-time data of natural earthquakes recorded by regional Hexi seismic network, we obtained the 3-D velocity anomaly distribution of the upper and middle crust in Hexi area. According to the inversion results, the earthquake risk in Hexi area is discussed. |
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