地震地质 ›› 1989, Vol. 11 ›› Issue (1): 15-25.

• 科研简报 • 上一篇    下一篇

西藏崩错8级地震地表破裂的变形特征及其破裂机制

吴章明, 邓起东   

  1. 国家地震局地质研究所
  • 收稿日期:1987-12-31 出版日期:1989-03-08 发布日期:2009-11-25

DEFORMATION FEATURES AND FRACTURE MECHANISM OF SURFACE RUPTURE OF 1951 BENGCO, TIBET Ms = 8 EARTHQUAKE

Wu Zhang-ming, Deng Qi-dong   

  1. Institute of Geology, State Seismological Bureau
  • Received:1987-12-31 Online:1989-03-08 Published:2009-11-25

摘要: 1951年11月18日,西藏那曲崩错附近发生了一次8级地震,地表产生了长达约91公里的破裂带。本文总结了该破裂的几何、位移分布特征,讨论了破裂的形成机制和崩错地震的发震构造条件。

关键词: 西藏崩错, 地震地表破裂, 变形特征, 破裂机制

Abstract: A great earthquake with a magnitude of Ms =8.0 occured in the vicinity of Bengco, northern Tibet, on November 18, 1951. Surface rupture zone as long as 91 km was formed by the event. The geomtry and displacement features of this surface rupture zone as well as the seismogenic structural conditions of the Bengco earthquake are discussed in this paper.

Key words: Bengco of Tibet, Surface rupture of earthquake, Deformation feature, Fracturing mechanism