| 汶川8．0级地震地表破裂 |
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| 引用本文： | 陈安国,姚大全,张有林,王行舟,郑颖平,李光.汶川8．0级地震地表破裂[J].安徽地质,2008,18(4):287-291. |
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| 作者姓名： | 陈安国 姚大全 张有林 王行舟 郑颖平 李光 |
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| 作者单位： | 安徽省地震局,安徽,合肥,230031 |
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| 基金项目： | 安徽省自然科学基金课题
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蒙城地球物理野外观测站共同资助
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| 摘 要： | 2008年5月12日发生在汶川的8．0级地震，震中位于龙门山断裂带的映秀-北川断裂上。通过对震区的现场调查，这次地震在极震区造成的地表破裂带主要在龙门山断裂带的中央断裂即映秀-北川断裂和前山断裂即彭县-灌县断裂。通过调查发现，极震区的地表断层产状多为北东走向，以逆冲运动为主。而在极震区以北的四川平武、青川和陕西宁强等余震分布区，地表也发生破裂，但规模和产生的地表变形明显减弱，主要以地裂缝等地质灾害形式表现。
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| 关 键 词： | 汶川地震 地表破裂 地震断层 地裂缝 |
RUPTURE OF THE 8.0 WENCHUAN EARTHQUAKE |
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| CHEN An-guo,YAO Da-quan,ZHANG You-lin,WANG Xing-zhou,ZHENG Ying-ping,LI Guang.RUPTURE OF THE 8.0 WENCHUAN EARTHQUAKE[J].Geology of Anhui,2008,18(4):287-291. |
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| Authors: | CHEN An-guo YAO Da-quan ZHANG You-lin WANG Xing-zhou ZHENG Ying-ping LI Guang |
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| Institution: | (Earthquake Administration of Anhui Province, Hefei 230031, China) |
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| Abstract: | On the 12th of May,2008,a devastating 8.0 earthquake struck Wenchuan County, Sichuan Province. Epicentre lie in Yingxiu -- Beichuan rupture of Longmen mountain rupture.Through investigating in seismic zone, Yingxiu- Beichuan rupture and Peng County-- Guan County rupture of Longmen mountain rupture were the main surface rupture zone in meizoseismal region.It was found that the earthquake deformation zone strikes in NE,the fault is dominated by reverse motion in meizoseismal region.Pingwu County, Qingchuan County of Sichuan Province and Ningqiang County of Shanxi Province to the north of the seismic zone, the earth＇s surface f;acture was also happned,however,the scale and the earth＇s surface distortion weakened obviously, mainly behave in the form of geological disasters such as the crack of ground,etc. |
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| Keywords: | Wenchuan earthquake surface rupture earthquake fault crack of ground |
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