| 汶川8.0级地震及强余震破裂方式与引潮力之间的关系 |
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| 引用本文： | 陈大庆,杨马陵,刘锦.汶川8.0级地震及强余震破裂方式与引潮力之间的关系[J].中国地震研究,2012,26(1):87-96. |
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| 作者姓名： | 陈大庆 杨马陵 刘锦 |
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| 基金项目： | sponsored under the Seismic Situation Tracing Directional Work Project in Contract System in 2009 (2009020301;2009010107),China |
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| 摘 要： | By calculating the azimuth,phase angle and change rate of tidal force,and contrasting their rupture types,we find that in 6 of 11 reverse faulting earthquakes,the angles between the direction of the horizontal tidal force and compressive principal stress are within 33°,the vertical phase angles of all 8 strike-slip earthquakes are in the upward peak section and the vertical phase angles of two extensional normal faulting earthquakes are in the downward peak section.According to the above statistics,the mechanism of tidal force triggering of the Wenchuan MS8.0 Earthquake and its strong aftershocks is discussed.
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| 关 键 词： | Wenchuan earthquake Strong aftershocks Tidal force The triggering mechanism |
| 收稿时间： | 8/2/2010 12:00:00 AM |
| 修稿时间： | 2010/11/26 0:00:00 |
A Study on Tidal Force Triggering of the Wenchuan MS8. 0 Earthquake and Its Strong Aftershocks |
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| Chen Daqing,Yang Mallng and Liu Jin.A Study on Tidal Force Triggering of the Wenchuan MS8. 0 Earthquake and Its Strong Aftershocks[J].Earthquake Research in China,2012,26(1):87-96. |
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| Authors: | Chen Daqing Yang Mallng and Liu Jin |
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| Institution: | Earthquake Administration of Guangdong Province, Guangzhou 510070 , China;Earthquake Administration of Guangdong Province, Guangzhou 510070 , China;Earthquake Administration of Guangdong Province, Guangzhou 510070 , China |
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| Abstract: | By calculating the azimuth, phase angle and change rate of tidal force, and contrasting their rupture types , we find that in 6 of 11 reverse faulting earthquakes , the angles between the direction of the horizontal tidal force and compressive principal stress are within 33°, the vertical phase angles of all 8 strike -slip earthquakes are in the upward peak section and the vertical phase angles of two extensional normal faulting earthquakes are in the downward peak section. According to the above statistics, the mechanism of tidal force triggering of the Wenchuan MS8. 0 Earthquake and its strong aftershocks is discussed. |
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| Keywords: | Wenchuan earthquake Strong aftershocks Tidal force The triggering mechanism |
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