Topographic Characteristics of Rupture Surface Associated with Wenchuan Earthquake

• 责任者：Wei Zhanyu (National Center for Active Fault Studies ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Shi Feng
• 刊名：Earth Science Frontiers
• 出版年：2010
• 卷期：17(5)
• 关键词：汶川地震2008 ; Wenchuan earthquake 2008 ; 破裂 ; rupture ; 龙门山断裂带 ; Longmenshan Fault Zone
• 页码：p.53-66
• 图表：10 illus., 1 table, 34 refs.
• 分类号：0500
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

It is very important to describe accurately the topography of rupture surfaces for understanding of seismic faulting because the topographic characteristics of the rupture include much information about the earthquake and fault mechanics. Two fresh rupture surfaces of the M_w 7. 9 2008 Wenchuan earthquake, referred to as the Bajiaomiao surface and the Shaba surface, have been measured by scanning with a 3D portable laser scanner (Trimble GX). The acquired sets of DEM data were analyzed using power spectral density and root-mean-square (RMS) roughness.