| The Study on the Strong Ground Motion Attenuation Relationship in the Pishan Area, Xinjiang Uygur Autonomous Region |
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| 作者姓名： | Li Wenqian Tao Zhengru Wei Bin He Jingang |
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| 作者单位： | Earthquake Agency of Xinjiang Uygur Autonomous Region, Urumqi 830011, China,Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China,Earthquake Agency of Xinjiang Uygur Autonomous Region, Urumqi 830011, China,Earthquake Agency of Xinjiang Uygur Autonomous Region, Urumqi 830011, China |
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| 基金项目： | This project was jointly sponsored by "The Ground Motion Attenuation Relationship Based on Seismology and Its Practicability" of the National Natural Science Foundation of China (51178434) "With Digital Ride Network Small Earthquake Records to Establish Regional Strong Ground Motion Attenuation Relations" from the National Natural Science Foundation of China(51478443) and "Based on the Regional Parameters of Mixed Ground Motion Attenuation Relationship" from the National Natural Science Foundation of China (51678540). |
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| 摘 要： | Small earthquake data from the Pishan MS6.5 aftershocks is collected by the Xinjiang Regional Digital Seismic Observation Network.Five parameters of the focal region are obtained by micro genetic inversion:stress dropΔσof 75.95 bars,quality factor parameters Q0of 186.33 andηof 0.26,geometric attenuation parameters R1of 72.18km and R2of 139.70km.We calculate the Fourier spectrum and combine it with the random phase spectrum to get the ground motion time history,and build the strong motion acceleration attenuation relationship.The strong ground motion acceleration attenuation of the Pishan area is thus obtained.Because of the insufficiency of strong ground motion records,we added the records from the Wuqia MS6.9 earthquake on October 5,2008,the Akto MS6.2 earthquake on October 6,2008,and the Lop MS6.0 earthquake on March 9,2012 to the data.The comparison of the calculation results and the empirical attenuation relationships with strong ground motion records reveal that the strong motion data of Pishan and Lop earthquakes is higher than the empirical attenuation relationships.The Wuqia MS6.9 earthquake strong motion data is consistent with Yu Yanxiangs(2013)short axis result,and lower than the present result.
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| 关 键 词： | Small earthquake data Parameters of focal region Micro genetic inversion Ground motion acceleration attenuation relationship |
| 收稿时间： | 2015/8/25 0:00:00 |
| 修稿时间： | 2016/2/24 0:00:00 |
The Study on the Strong Ground Motion Attenuation Relationship in the Pishan Area, Xinjiang Uygur Autonomous Region |
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| Li Wenqian,Tao Zhengru,Wei Bin,He Jingang.The Study on the Strong Ground Motion Attenuation Relationship in the Pishan Area, Xinjiang Uygur Autonomous Region[J].Earthquake Research in China,2018,32(1):40-52. |
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| Authors: | Li Wenqian Tao Zhengru Wei Bin and He Jingang |
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| Abstract: | |
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| Keywords: | Small earthquake data Parameters of focal region Micro genetic inversion Ground motion acceleration attenuation relationship |
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