ANALYSIS ON TERRAIN FACTORS OF EARTHQUKAE DISASTER IN BEICHUAN AREA
Wang Qiuliang 1,2) ;Xue Hongjiao 1) ; Yang Qiang 2) ; Wang Dun 1)
; Li Jinggan 1) and Zhang Lifen 1)
1) Institute of Seismology,CEA,Wuhan 4300712)China University of Geosciences, Faculty of Engineering, Wuhan 430074
Abstract The images before and after earthquake of Beichuan County are compared, based on tectonic background of regional geology, moreover, the various terrain factors including slope, aspect, Plan of curvature, profile curvature, slope rate and so on, are extracted from Digital Elevation Model (DEM),to quantitatively analyze the terrain information. The preliminary result indicates as follows: in Beichuan County, the slope ranges from 40° to 50°, slope change rate is between 18° and 30°, and relief amplitude ranges from 50 m to 70 m, the seismic secondary disasters,such as landslide and barrier lake triggered by landslide in some valley areas are extremely easy to occur in even wider areas.
Key words ：
Digital Elevation Model (DEM)
terrain factor
Wenchuan Ms8.0 earthquake
geological hazard
Beichuan area
Received: 01 January 1900
Corresponding Authors:
Wang Qiuliang
Cite this article:
Wang Qiuliang,Xue Hongjiao ,Yang Qiang et al. ANALYSIS ON TERRAIN FACTORS OF EARTHQUKAE DISASTER IN BEICHUAN AREA[J]. , 2008, 28(6): 68-72.
Wang Qiuliang,Xue Hongjiao ,Yang Qiang et al. ANALYSIS ON TERRAIN FACTORS OF EARTHQUKAE DISASTER IN BEICHUAN AREA[J]. jgg, 2008, 28(6): 68-72.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2008/V28/I6/68
[1]
LIU Zhijun,TAN Kai,WANG Qi,WANG Lei,ZHANG Jian,ZHAO Bin,QIAO Xuejun. Numerical Simulation Analysis of After-Slip and Viscoelastic Relaxation after the Wenchuan Earthquake
[2]
DAI Zhihong，LU Peng，ZHANG Zhifang，WANG Xiaolong，XU Guo，DONG Jianming. Surface Subsidence Monitoring and Analysis of Nanning Based on PS-InSAR Technology
[3]
ZHAO Zhichuang，ZHANG Yan，ZHAO Ying. Recognition Analysis on Anomalous Characteristics of Imminent Earthquake——Taking Wenchuan Earthquake as an Example
[4]
WANG Lei, TAN Kai. Study on the Reliability of Coulomb Stress Change Induced by the 2008 Wenchuan MW 7.9 Earthquake
[5]
NIU Anfu,ZHANG Lingkong,ZHANG Jing,LI Yuan,ZHAO Jing,YAN Wei,YUE Chong,YUAN Zhengyi. On the Fixed Points in Crust Deformation prior to Wenchuan Earthquake and Dynamic Background
[6]
JIN Zhitong，WAN Yongge，WANG Fuchang，YANG Fan，LI Yao. Evidence on the Stress Effect of the 2008 Wenchuan Earthquake Rupture to the Northeast
[7]
DONG Peiyu，LIU Chang，SHI Yaolin. Relationship between the 2008 MS 8.0 Wenchuan Earthquake and the 2017 MS 7.0 Jiuzhaigou Earthquake
[8]
XU Kangsheng,LI Ying. The Permutation Entropy Change of Ground Motion before the MS 8.0 Wenchuan Earthquake
[9]
HE Kefeng,ZHAO Bin,DU Ruilin. Post-Seismic Deformation Associated with the 2008 Wenchuan Earthquake by Long-Term GPS Data
[10]
LIU Jie. Coseismic Slip of Wenchuan Earthquake Inversed by Particle Swarm Optimization Algorithm Using Three-Dimensional Data
[11]
WEN Yangmao, ZHANG Guobo, XU Caijun. GPS Velocity Field Clustering in the Sichuan-Yunnan Region
[12]
YUE Chong,YAN Wei,LI Xiaofan,NIU Anfu,ZHAO Jing,YUAN Zhengyi. Sichuan Fault Activity Analysis and Correlation Study of Wenchuan & Lushan Seismic Activity
[13]
.
[14]
.
[15]
SONG Jian,YANG Shaomin,WANG Wei,HUANG Yong,LIN Mu. Study on the Locking Characteristics of Anninghe-Zemuhe-Xiaojiang Fault Zone
