| Textual research of Wudu earthquake in 186 B.C. in Gansu Province, China and discussion on its causative structure |
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| 作者姓名： | 袁道阳 雷中生 何文贵 熊振 葛伟鹏 刘兴旺 刘百篪 |
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| 作者单位： | Lanzhou Institute of Seismology China Earthquake Administration，Lanzhou Institute of Seismology China Earthquake Administration，Lanzhou Institute of Seismology China Earthquake Administration，Earthquake Administration of Jiangsu Province，Lanzhou Institute of Seismology China Earthquake Administration，Lanzhou Institute of Seismology China Earthquake Administration，Lanzhou Institute of Seismology China Earthquake Administration，Lanzhou 730000 China Lanzhou Base of Institute of Earthquake Science China Earthquake Administration Lanzhou 730000 China，Lanzhou 730000 China Lanzhou Base of Institute of Earthquake Science China Earthquake Administration Lanzhou 730000 China，Lanzhou 730000 China Lanzhou Base of Institute of Earthquake Science China Earthquake Administration Lanzhou 730000 China，Nanjing 210014 China，Lanzhou 730000 China Lanzhou Base of Institute of Earthquake Science China Earthquake Administration Lanzhou 730000 China，Lanzhou 730000 China Lanzhou Base of Institute of Earthquake Science China Earthquake Administration Lanzhou 730000 China，Lanzhou 730000 China Lanzhou Base of Institute of Earthquake Science China Earthquake Administration Lanzhou 730000 China |
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| 基金项目： | National Natural Science Foundation of China (40372086)，“Short-term and Imminent Tracing Research of Moder-ate-strong Earthquakes in the SN Seismic Belt” by China Earthquake Administration and Scientific Key Foundation Item of Gansu Province (2GS054-A44-015). |
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| 摘 要： | On the basis of the textual research on the historical earthquake data and the field investigation of Wudu earth- quake occurred in 186 B.C., we suggest that the earthquake parameters drawn from the present earthquake catalogs are not definite and amendments should be made. The heavily-damaged area of this earthquake should be located between Jugan township of Wudu County and Pingding township of Zhouqu County. Its epicenter should be in the vicinity of Lianghekou in Wudu County with a magnitude of about 7~7 41 and an intensity of about IX~X. The major axis direction of the heavily-damaged area should be in the WNW direction that is approximately consistent with the strike of the middle-east segment of Diebu-Bailongjiang active fault zone, and the origin time should match up to that of the latest paleoearthquake event before (83±46) B.C.] obtained by the trench investigation. Certain seismic rupture evidences are still preserved on this fault segment. Therefore, we propose on the basis of comprehensive analysis that the causative structure of the M 7~7 4/1 Wudu earthquake in 186 B.C. should be in the middle-east segment of Diebu-Bailongjiang active fault zone.
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| 关 键 词： | 地震学 地震事件 原因分析 断层区域 |
| 文章编号： | 1000-9116（2007）06-0696-12 |
| 收稿时间： | 2007-06-04 |
| 修稿时间： | 2007-10-08 |
Textual research of Wudu earthquake in 186 B.C. in Gansu Province, China and discussion on its causative structure |
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| Yuan Dao-yang , Lei Zhong-sheng , He Wen-gui , Xiong Zhen , Ge Wei-peng , Liu Xing-wang and Liu Bai-chi.Textual research of Wudu earthquake in 186 B.C. in Gansu Province, China and discussion on its causative structure[J].Acta Seismologica Sinica(English Edition),2007,20(6):696-707. |
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| Authors: | Yuan Dao-yang Lei Zhong-sheng He Wen-gui Xiong Zhen Ge Wei-peng Liu Xing-wang and Liu Bai-chi |
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| Institution: | (1) Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou, 730000, China;(2) Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou, 730000, China;(3) Earthquake Administration of Jiangsu Province, Nanjing, 210014, China |
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| Abstract: | On the basis of the textual research on the historical earthquake data and the field investigation of Wudu earthquake occurred
in 186 B.C., we suggest that the earthquake parameters drawn from the present earthquake catalogs are not definite and amendments
should be made. The heavily-damaged area of this earthquake should be located between Jugan township of Wudu County and Pingding
township of Zhouqu County. Its epicenter should be in the vicinity of Lianghekou in Wudu County with a magnitude of about
7∼7? and an intensity of about IX∼X. The major axis direction of the heavily-damaged area should be in the WNW direction that
is approximately consistent with the strike of the middle-east segment of Diebu-Bailongjiang active fault zone, and the origin
time should match up to that of the latest paleoearthquake event before (83±46) B.C.] obtained by the trench investigation.
Certain seismic rupture evidences are still preserved on this fault segment. Therefore, we propose on the basis of comprehensive
analysis that the causative structure of the M 7∼7? Wudu earthquake in 186 B.C. should be in the middle-east segment of Diebu-Bailongjiang active fault zone.
Contribution No. LC20070042, Lanzhou Institute of Seismology, China Earthquake Administration. |
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| Keywords: | Wudu earthquake in 186 B C textual research of historical earthquake causative structure Diebu-Bailongjiang fault zone |
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