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| 龙陵-瑞丽断裂北段晚第四纪活动性特征及强震复发间隔 | |
| 引用本文： | 杜义,张效亮,黄学猛,杜宇本,谢富仁.龙陵-瑞丽断裂北段晚第四纪活动性特征及强震复发间隔[J].震灾防御技术,2012,7(3):215-226. |
| 作者姓名： | 杜义 张效亮 黄学猛 杜宇本 谢富仁 |
| 作者单位： | 1. 中国地震局地壳应力研究所,北京,100085 2. 中国地震灾害防御中心,北京,100029 3. 中铁二院工程集团有限责任公司,成都,610031 |
| 基金项目： | 铁道部科技研究开发计划（2008G027-B）和国土资源部深部探测技术与实验研究专项（Sinoprobe-06-04）资助 |
| 摘 要： | 野外地质地貌调查表明,龙陵-瑞丽断裂(南支)北段是以左旋走滑为主兼具一定正断分量的区域性活动断裂.断裂晚更新世以来的平均水平滑动速率为2.2mm/a,平均垂直滑动速率为0.6mm/a;全新世以来的平均水平滑动速率为1.8-3.0mm/a,平均垂直滑动速率为0.5mm/a.断裂在晚更新世以来的滑动速率在不同的时间尺度上变化不大,反映出该断裂晚更新世以来的活动强度比较稳定.利用Poisson模型、Lognormal模型、BPT模型三种概率模型计算获得未来50a强震发震概率分别是:6.32％、0.08％、0.05％；三种模型分别取权重0.28、0.36、0.36,获得龙陵-瑞丽断裂北段未来50a特征地震发震概率为1.82％. |
| 关 键 词： | 龙陵-瑞丽断裂 滑动速率 特征地震 复发间隔 |
| 收稿时间： | 7/5/2012 12:00:00 AM |
Strong Earthquake Occurrence Interval along the Northern Segment of Longling-Ruili Fault and Its Late Quaternary Activity |
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| Du Yi,Zhang Xiaoliang,Huang Xuemeng,Du Yuben and Xie Furen.Strong Earthquake Occurrence Interval along the Northern Segment of Longling-Ruili Fault and Its Late Quaternary Activity[J].Technology for Earthquake Disaster Prevention,2012,7(3):215-226. | |
| Authors: | Du Yi Zhang Xiaoliang Huang Xuemeng Du Yuben and Xie Furen |
| Institution: | 1) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China;2) China Earthquake Disaster Prevention Center, Beijing 100029, China;1) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China;3) China Railway Eryuan Engineering Group Co. Ltd., Chengdu 610031, China;1) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China |
| Abstract: | The field investigation and interpretation of remote images indicate that the last activity along the northern segment of Longling-Ruili fault occurred in the Holocene with a strike-slip rate of 2.2-2.5 mm/a and vertical slip rate of 0.6mm/a since late Pleistocene epoch, and strike-slip rate of 1.8-3.0 mm/a and vertical slip rate of 0.5mm/a during the Holocene epoch. The occurrence probability of strong earthquakes in 50 years is calculated as 6.32% by Poisson model, 0.08% by Lognormal model and 0.05% by BPT model respectively. Finally, the probability of occurrence of characteristic earthquakes for north section of Longling-Ruili fault is estimated as 1.82% with the weight of 0.28, 0.36 and 0.36 for Poisson model, Lognormal model and BPT model. |
| Keywords: | Longling-Ruili fault Slip rate Characterized earthquake Recurrence interval |
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