地震地质 ›› 2008, Vol. 30 ›› Issue (2): 355-358.

• 科研快讯 • 上一篇    下一篇

汶川8.0级强震北川、映秀地表破裂现象

邓志辉, 杨主恩, 陈桂华, 马文涛, 孙谦   

  1. 中国地震局地质研究所, 北京, 100029
  • 收稿日期:2008-05-26 修回日期:2008-05-27 出版日期:2008-06-20 发布日期:2009-08-16
  • 作者简介:邓志辉,男,1962年生,1992年在国家地震局地质研究所大地构造物理专业毕业,获得博士学位,研究员,主要从事地震机理和地震预测方法研究,电话86-10-62009089,E-mail:deng6789@163.com.

SURFACE FRACTURES OF WENCHUAN EARTHQUAKE(M8.0) IN BEICHUAN AND YINGXIU

DENG Zhi-hui, YANG Zhu-en, CHEN Gui-hua, MA Wen-tao, SUN Qian   

  1. Institute of Geology, China Earthquake Administration, Beijing 100029, China
  • Received:2008-05-26 Revised:2008-05-27 Online:2008-06-20 Published:2009-08-16

摘要: 在汶川8.0级大地震后,通过对北川和映秀2个极震区地表破裂的初步调查发现:北川、映秀地震形变带总体上为NE-SW向展布;地震破裂带以逆冲为主,兼小量走滑位移;北川地表形变带挤压缩短量为3~4m,映秀地表破裂左旋走滑位移为0.4~0.5m。

关键词: 汶川地震, 地表破裂, 断层位移

Abstract: After Wenchuan Earthquake(M8.0),surface fractures in Beichuan and Yingxiu were investigated.It was found that the earthquake deformation zone strikes in NE-SW.Earthquake fracture is characterized by thrust faulting with small amount of strike-slip movement.The compressional shortening is 3~4m in Beichuan and the left-lateral strike-slip displacement is 0.4~0.5m in Yingxiu.

Key words: Wenchuan Earthquake, surface fracture, displacement of fault

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