| 新疆于田两次7.3级地震之后南北地震带Benioff应变比分布特征研究 |
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| 引用本文： | 杨文.新疆于田两次7.3级地震之后南北地震带Benioff应变比分布特征研究[J].中国地震研究,2014(4):475-482. |
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| 作者姓名： | 杨文 |
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| 作者单位： | 中国地震台网中心，北京市西城区三里河南横街5号 100045 |
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| 基金项目： | This project was sponsored by the National Key Technology R＆D Program for the 12th“Five-year Plan”of China (2012BAK19B02-01) ． |
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| 摘 要： | In view of the correlation between tectonic activity and seismicity, the strong earthquake risk in the North-South Seismic Belt aroused wide concern after the 2014 Yutian Ms7. 3 earthquake. Using the seismic catalog of the China Earthquake Networks Center, the Benioff strain ratio in the North-South Seismic Belt is calculated in 30 days before and after the March 21, 2008 and February 12, 2014 Yutian Ms7. 3 earthquakes. Results show that in a year after the 2008 Yutian Ms7. 3 earthquake, M 〉 5. 0 earthquakes all occurred near the high strain ratio area or the junction between the low and high strain ratio areas, the activity of strong earthquakes obviously coincides with the high strain ratio area, which indicates that these areas have a higher stress level. The Yutian earthquakes promoted the release of small earthquakes in the high stress areas. This research is of certain indicating significance to the study of subsequent strong earthquakes of this region.
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| 关 键 词： | 南北地震带 高应变率 地震后 特征 地震活动 构造活动 地震目录 地震台网 |
Research on the Distribution Features of the Benioff Strain Ratio in the North-South Seismic Belt after the Two Yutian MS7.3 Earthquakes1 |
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| Yang Wen.Research on the Distribution Features of the Benioff Strain Ratio in the North-South Seismic Belt after the Two Yutian MS7.3 Earthquakes1[J].Earthquake Research in China,2014(4):475-482. |
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| Authors: | Yang Wen |
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| Institution: | [1]China Earthquake Networks Center, China Earthquake Administration, Beijing 100045, China; [2]Key Laboratory of Active Tectonics and Volcano, Institute of Geology, CEA, Beijing 100029, China |
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| Abstract: | Two Yutian earthquakes Benioff strain ratio Seismic activity North-South Seismic Belt |
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| Keywords: | Two Yutian earthquakes Benioff strain ratio Seismic activity North-South Seismic Belt |
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