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| 2007年宁洱6.4级地震强余震库仑破裂应力触发研究 | |
| 引用本文： | 刘强,倪四道,秦嘉政,付虹,王绍晋.2007年宁洱6.4级地震强余震库仑破裂应力触发研究[J].地震研究,2007,30(4):331-336. |
| 作者姓名： | 刘强 倪四道 秦嘉政 付虹 王绍晋 |
| 作者单位： | 1. 中国科学技术大学,地球和空间科学学院,合肥,230026;云南省地震局,昆明,650224 2. 中国科学技术大学,地球和空间科学学院,合肥,230026 3. 云南省地震局,昆明,650224 |
| 基金项目： | “澜沧江流域重大水利枢钮工程诱发地震监视与研究”项目资助. |
| 摘 要： | 运用Okada方法计算了2007年6月3日宁洱MS6.4地震在其MS5.1强余震破裂面上产生的静态库仑破裂应力变化。结果表明,该静态库仑破裂应力变化量为0.36MPa,超过"触发阈值"(10-2MPa)1个数量级,说明宁洱6.4级地震在其5.1级强余震破裂面上引起的应力变化可能触发了该强余震的发生。 |
| 关 键 词： | 宁洱6.4级地震 静态库仑破裂应力 触发阈值 强余震触发 |
| 文章编号： | 1000-0666-（2007）04-0331-06 |
| 收稿时间： | 2007-08-10 |
| 修稿时间： | 2007年8月10日 |
Triggered Strong Aftershock by Coulomb Failure Stress Change Caused by the 2007 Ning'er, Yunnan, Ms6.4 Earthquake |
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| LIU Qiang,NI Si-dao,QIN Jia-zheng,FU Hong,WANG Shao-jin.Triggered Strong Aftershock by Coulomb Failure Stress Change Caused by the 2007 Ning''''er, Yunnan, Ms6.4 Earthquake[J].Journal of Seismological Research,2007,30(4):331-336. | |
| Authors: | LIU Qiang NI Si-dao QIN Jia-zheng FU Hong WANG Shao-jin |
| Abstract: | Okada's method was used to calculate the change of static Coulomb failure stress on the failure plane of the largest aftershock (MS5.1) caused by the 2007 Ning'er MS6.4 earthquake. It is found that the stress change on the aftershock failure plane is 0.36 MPa,larger than 0.01 Mpa,the threshold for triggering earthquakes. Therefore,the largest aftershock was probably triggered by the Coulomb failure stress change caused by the main shock. |
| Keywords: | Ning'er MS6 4 earthquake static Coulomb failure stress stress threshold of triggering earthquake strong aftershock triggering |
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