| 1990年共和7.0级地震的发震构造讨论 |
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| 引用本文： | 陈玉华,张敏,张晓青,朱德瑜,肖振敏.1990年共和7.0级地震的发震构造讨论[J].西北地震学报,1998,20(3):39-43. |
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| 作者姓名： | 陈玉华 张敏 张晓青 朱德瑜 肖振敏 |
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| 作者单位： | 青海省地震局,中国地震局地壳应力研究所 |
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| 基金项目： | 青海省科委1995年10月下达的”青海共和盆地强震发生机制研究”项目 |
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| 摘 要： | 根据地质、地震及形变资料研究了１９９０年４月青海省共和ＭＳ７．０地震的发震构造．认为ＮＷＮＷＷ向的哇玉香卡拉干逆冲盲断裂是该次地震的发震构造．其地表形变以褶皱隆起为主．因此,共和地震是一次典型的“盲断裂褶皱地震”．
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| 关 键 词： | 青海 发震断裂 共和地震 盲断裂-褶皱地震 |
| 收稿时间： | 1997/9/10 0:00:00 |
A DISCUSSION ON SEISMOGENIC FAULT FOR THE GONGHE MS7.0 EARTHQUAKE IN 1990 |
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| CHEN Yuhu,ZHANG Min,ZHANG Xiaoqing,ZHU Deyu and XIAO Zhenmin.A DISCUSSION ON SEISMOGENIC FAULT FOR THE GONGHE MS7.0 EARTHQUAKE IN 1990[J].Northwestern Seismological Journal,1998,20(3):39-43. |
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| Authors: | CHEN Yuhu ZHANG Min ZHANG Xiaoqing ZHU Deyu and XIAO Zhenmin |
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| Institution: | Seismological Bureau of Qinghai Province, Xining 810001,Seismological Bureau of Qinghai Province, Xining 810001,Seismological Bureau of Qinghai Province, Xining 810001,Institute of Crust Dynamics, CSB, Beijing 100085 and Institute of Crust Dynamics, CSB, Beijing 100085 |
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| Abstract: | Seismogenic structure of the Gonghe MS7.0 earthquake on Apr.26,1990 in Qinghai province is studied by using data on geology,seismology and deformation.It is possible that the Wayuxiangka-Lagan blind thrust fault with trend of NW-NWW is the seismogenic fault for the Gonghe MS7.0 earthquake in 1990.Ground deformation by the Gonghe earthquake is fold-up-heaval mainly.Therefore,the Gonghe earthquake is a typical "blind fault-folding earthquake". |
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| Keywords: | Qinghai Seismogenic fault Gonghe earthquake Blind fault folding earthquake |
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