| Feasibility Study on Determining Focal Mechanism Solutions of Small Earthquakes Using the Velocity Amplitude Ratio of -and -Waves |
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| 作者姓名： | Zhang Yongjiu Cheng Wanzheng |
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| 基金项目： | This project was sponsored by the the“Strong Earthquake Monitoring and Prediction Research”for the 11th“Five-Year Plan”under the grant No.2006BA(01B02-01-01); subspecial subject of 2006BAC01 B02-01-01; the State Key Basic Research Development Programme (2004CB418404),China |
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| 摘 要： | The focal mechanism parameters of small earthquakes are determined by the maximum velocity and displacement amplitude ratio of the direct ^-P- and ^-S-waves recorded by digital stations. The displacement is obtained from the velocity by emulation, and the two results are compared and analyzed. Results of theoretical analysis and practical measurement indicate that the two results of velocity and displacement are consistent, and it is feasible that the maximum displacement amplitude ratio be replaced by the maximum velocity amplitude ratio of the direct ^-P-and ^-S- waves recorded by regional seismic networks when determining focal mechanism solutions of small earthquakes.
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| 关 键 词： | 地震 参量 周转率 研究 |
| 收稿时间： | 2007/5/15 0:00:00 |
| 修稿时间： | 2007/12/23 0:00:00 |
Feasibility Study on Determining Focal Mechanism Solutions of Small Earthquakes Using the Velocity Amplitude Ratio of ^-P- and ^-S-Waves |
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| Zhang Yongjiu,Cheng Wanzheng.Feasibility Study on Determining Focal Mechanism Solutions of Small Earthquakes Using the Velocity Amplitude Ratio of ^-P- and ^-S-Waves[J].Earthquake Research in China,2008,22(3):276-285. |
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| Authors: | Zhang Yongjiu and Cheng Wanzheng |
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| Institution: | Earthquake Administration of Sichuan Province,Chengdu 610041,China;Earthquake Administration of Sichuan Province,Chengdu 610041,China |
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| Abstract: | Focal mechanism solution Velocity Displacement Amplitude ratio |
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| Keywords: | Focal mechanism solution Velocity Displacement Amplitude ratio |
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