The Surface Ruptures and the Macroscopical Epicenter of Yushu M_s7.1 Earthquakeoft-com:office:office" />

• 责任者：Ma Yinsheng (Key Laboratory of Neotectonic Movement & Geohazard ; Ministry of Land and Resources ; Beijing 100081 ; China) ; Zhang Yongshuang
• 刊名：Journal of Geomechanics
• 出版年：2010
• 卷期：16(2)
• 关键词：玉树地震2010 ; Yushu earthquake 2010
• 页码：p.115-128
• 图表：5 illus., 5 paltes, 27 refs.
• 分类号：0500
• issnNo：ISSN1006-6616
• isbnNo：CN11-3672/P

In the field investigation two surface rupture zones were observed from west to east, Longbaotan surface rupture zone and Yushu surface rupture zone. They display NW trending and are respectively developed along hang wall of the Longbaotan active fault and Yushu active fault at an interval of oft-com:office:smarttags" />22 km. The Longbaotan surface rupture zone, trending along 290° with a length of 21.5 km, was sinistral strike-slip movement with a sinistral strike-slip displacement of about 1 m. The Yushu surface rupture zone, trending 310° with a length of 23 km, can be further divided into three sections. It shows sinistral strike-slip movement in western and middle segment, sinistral strike-slip and thrust in eastern segment. The maximum sinistral strike-slip displacement (2.4 m) of the rupture zones appears near the Guoyangyansongduo.  oft-com:office:office" />