| 断层形变趋势变化研究−垂直形变趋势累积Dc值 |
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| 引用本文： | 曹志磊, 周琼, 鲍玉静, 孙军, 葛计划, 于磊. 郯庐断裂带中南段断层形变累积率长期变化特征[J]. 国际地震动态 , 2018, (12): 22-28. DOI: 10.3969/j.issn.0253-4975.2018.12.005 |
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| 作者姓名： | 曹志磊 周琼 鲍玉静 孙军 葛计划 于磊 |
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| 作者单位： | 1.安徽省地震局，合肥 230031;2.河北省地震局，石家庄 050021 |
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| 基金项目： | 安徽省地震局青年基金项目（20140303）资助。 |
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| 摘 要： | 利用形变累积率方法，对郯庐断裂带中南段及其邻近区域的跨断层短水准观测资料进行了较为全面的分析研究，在分别讨论不同区域断层形变累积率中长期变化特征的基础上，结合地震活动性，探讨了该方法对中强地震判定的背景意义。研究认为，目前郯庐断裂带中南段总体处于应力的缓慢积累阶段，近期中强地震发生的能量积累尚不足，同时，郯庐断裂带中南段主干断裂沿线的各区域与整体的长期变化特征存在明显的差异，具有进一步研究的空间。
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| 关 键 词： | 形变累积率 跨断层形变测量 地震活动性 区域应力场 |
| 收稿时间： | 2018-04-09 |
| 修稿时间： | 2018-06-27 |
Long-term variation of fault deformation rate in the central-south segment of the Tanlu fracture zone |
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| Zhilei Cao, Qiong Zhou, Yujing Bao, Jun Sun, Jihua Ge, Lei Yu. Long-term variation of fault deformation rate in the central-south segment of the Tanlu fracture zone[J]. Progress in Earthquake Sciences, 2018, (12): 22-28. DOI: 10.3969/j.issn.0253-4975.2018.12.005 |
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| Authors: | Zhilei Cao Qiong Zhou Yujing Bao Jun Sun Jihua Ge Lei Yu |
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| Affiliation: | 1.Anhui Earthquake Agency， Hefei 230031，China;2.Hebei Earthquake Agency， Shijiazhuang 050021，China |
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| Abstract: | Based on the method of deformation accumulation rate, we analyzed the cross-fault observation data of the central-southern section in the Tanlu fault zone and its adjacent areas comprehensively, discussed the respective long-term variation of the fault deformation accumulation rate in different regions, studied the significance of the method for moderate earthquake. It is concluded that the stress of the central-southern section in the Tanlu fault zone is in a slow accumulation stage. Therefore, the energy accumulation for an moderate earthquakes is currently insufficient. Meanwhile, there exist significant differences in long-term variation between the regions along the main faults and the central-southern section as a whole in the Tanlu fault zone, which await further research. |
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| Keywords: | deformation accumulation rate cross-fault defromation measurement seismic activity regional stress field |
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