| 川滇地块南部主要断裂现今形变特征及危险性分析 |
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| 引用本文： | 徐东卓,李胜虎,周海涛,王阅兵,王世进.川滇地块南部主要断裂现今形变特征及危险性分析[J].震灾防御技术,2017,12(3):539-546. |
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| 作者姓名： | 徐东卓 李胜虎 周海涛 王阅兵 王世进 |
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| 作者单位： | 1.中国地震局第一监测中心, 天津 300180 |
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| 基金项目： | 中国地震局“三结合”课题（CEA-JC/3JH-163704）,中国地震局第一监测中心主任科技创新基金（FMC2015013）,科技基础性工作专项（2015FY210400） |
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| 摘 要： | 本文利用川滇地块南部30余年的跨断层观测资料,计算了跨断层场地的三维活动量,分析了区域内断裂的现今形变特征以及川滇地块南部的运动方式,认为部分断裂现今表现出异常活动的现象,川滇地块南部整体表现出以水平顺时针旋转为主的运动学特征,并对该区域中短期地震危险性做出了初步推测。
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| 关 键 词： | 川滇地块 活动断裂 跨断层监测 形变分析 |
| 收稿时间： | 2016/12/22 0:00:00 |
Characteristics of Current Deformation and Earthquake Risk of the Main Faults in the South of Sichuan-Yunnan Block |
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| Xu Dongzhuo,Li Shenghu,Zhou Haitao,Wang Yuebing and Wang Shijin.Characteristics of Current Deformation and Earthquake Risk of the Main Faults in the South of Sichuan-Yunnan Block[J].Technology for Earthquake Disaster Prevention,2017,12(3):539-546. |
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| Authors: | Xu Dongzhuo Li Shenghu Zhou Haitao Wang Yuebing and Wang Shijin |
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| Institution: | 1.The First Monitoring and Application Center, CEA, Tianjin 300180, China2.Sanya Institute of Deep-sea Science and Engineering, China Academy of Sciences, Sanya 572000, Hainan, China3.National Earthquake Infrastructure Service, CEA, Beijing 100045, China |
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| Abstract: | By using the cross-fault observation data for over thirty years in the south of Sichuan-Yunnan block, we calculated surface movement by fault activity in three-dimension. Then we analyzed the current deformation characteristics of the faults in the region and the kinematic features of southern Sichuan-Yunnan block. We found that some faults show abnormal activity at present, and the southern part of Sichuan-Yunnan block shows the horizontal and clockwise rotation way. Finally, we estimated the moderate-and short-term seismic risk in this area. |
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| Keywords: | Sichuan-Yunnan block Active faults Cross-fault monitoring Deformation analysis |
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