汶川地震滑坡详细编录及其与全球其他地震滑坡事件对比

被引:31
作者
许冲
机构
[1] 中国地震局地质研究所活动构造与火山重点实验室
关键词
汶川地震滑坡; 编录; 滑坡强频关系; 滑坡影响区面积;
D O I
暂无
中图分类号
P642.22 [滑坡]; P315.9 [工程地震];
学科分类号
0837 ;
摘要
汶川地震滑坡编录结果表明,2008年5月12日汶川地震触发了197481处滑坡,面积约为1160km2,大致分布在一个面积约1.1x10~5km2的区域内,是当前汶川地震滑坡最全面详细的编录成果,也是有记录以来单次地震事件触发滑坡数量最多的记录。其中196007处滑坡(占滑坡总数量的99.25%),面积为1150.622km2(占总滑坡面积的99.19%),分布在一个面积为44031km2、以映秀—北川地表破裂为近似中心的近椭圆形区域内。分析这196007处滑坡面积与滑坡数量的幂律关系,结果表明,面积在1x10~4—1x10~6m2之间的滑坡,滑坡面积与滑坡数量累加之间的幂律关系式可表示为lgN(A)=-2.0745A+13,判定系数R2=0.9931,表明该滑坡面积区间内滑坡面积与滑坡数量之间具有良好的幂律关系。对比结果表明,汶川地震滑坡影响区面积略高于全球其他地震事件滑坡影响区面积的上包络线。汶川地震滑坡编录成果为后续汶川地震滑坡相关科学研究提供了重要的基础数据。
引用
收藏
页码:18 / 26
页数:9
相关论文
共 38 条
[1]  
Comparison of different models for susceptibility mapping of earthquake triggered landslides related with the 2008 Wenchuan earthquake in China.[J].Chong Xu;Xiwei Xu;Fuchu Dai;Arun K. Saraf.Computers and Geosciences.2012,
[2]   The 2010 Yushu earthquake triggered landslide hazard mapping using GIS and weight of evidence modeling [J].
Xu, Chong ;
Xu, Xiwei ;
Lee, Yuan Hsi ;
Tan, Xibin ;
Yu, Guihua ;
Dai, Fuchu .
ENVIRONMENTAL EARTH SCIENCES, 2012, 66 (06) :1603-1616
[3]  
Distribution pattern of earthquake-induced landslides triggered by the 12 May 2008 Wenchuan earthquake.[J].Tolga Gorum;Xuanmei Fan;Cees J. van Westen;Run Qiu Huang;Qiang Xu;Chuan Tang;Gonghui Wang.Geomorphology.2011, 3
[4]  
Spatial distribution analysis of landslides triggered by 2008.5.12 Wenchuan Earthquake; China.[J].Shengwen Qi;Qiang Xu;Hengxing Lan;Bing Zhang;Jianyou Liu.Engineering Geology.2010, 1
[5]   Landslides induced by the April 2007 Aysén Fjord earthquake, Chilean Patagonia [J].
Sergio A. Sepúlveda ;
Alejandra Serey ;
Marisol Lara ;
Andrés Pavez ;
Sofía Rebolledo .
Landslides, 2010, 7 :483-492
[6]   Distribution and characteristics of landslides induced by the Iwate–Miyagi Nairiku Earthquake in 2008 in Tohoku District, Northeast Japan [J].
Hiroshi Yagi ;
Go Sato ;
Daisuke Higaki ;
Miki Yamamoto ;
Takanari Yamasaki .
Landslides, 2009, 6 :335-344
[7]   Analysis of the geo-hazards triggered by the 12 May 2008 Wenchuan Earthquake, China [J].
Huang, R. Q. ;
Li, W. L. .
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2009, 68 (03) :363-371
[8]   GIS-based landslide susceptibility mapping for the 2005 Kashmir earthquake region [J].
Kamp, Ulrich ;
Growley, Benjamin J. ;
Khattak, Ghazanfar A. ;
Owen, Lewis A. .
GEOMORPHOLOGY, 2008, 101 (04) :631-642
[9]   Analysis of a spatial distribution of landslides triggered by the 2004 Chuetsu earthquakes of Niigata Prefecture, Japan [J].
Wang, H. B. ;
Sassa, K. ;
Xu, W. Y. .
NATURAL HAZARDS, 2007, 41 (01) :43-60
[10]   Interpretation of landslide distribution triggered by the 2005 Northern Pakistan earthquake using SPOT 5 imagery [J].
Sato, Hiroshi P. ;
Hasegawa, Hiroyuki ;
Fujiwara, Satoshi ;
Tobita, Mikio ;
Koarai, Mamoru ;
Une, Hiroshi ;
Iwahashi, Junko .
LANDSLIDES, 2007, 4 (02) :113-122