NDLI: The characteristics of post-seismic surface deformation of the Wenchuan MS8.0 earthquake from InSAR

Content Provider	IEEE Xplore Digital Library
Author	Xiaogang Song Xinjian Shan Chunyan Qu Yufei Han Guifang Zhang Limin Guo Guohong Zhang
Copyright Year	2010
Description	Author affiliation: State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China (Xiaogang Song; Xinjian Shan; Chunyan Qu; Yufei Han; Guifang Zhang; Limin Guo; Guohong Zhang)
Abstract	The D-InSAR technology is used to acquire four strips of post-seismic surface deformation of Wenchuan M8 earthquake of 2008 from the ALOS/PALSAR satellite data of Japan. The result covers the Yingxiu town, Wenchuan, Shifang, Maoxian county, Beichuan, Pingwu and Qingchuan county in Sichuan Province. Some post-deformation characteristics is showed in the final result. Around Yingxiu town, the epicenter of main shock, a area of uplift is present with small amplitude 0–5cm at the northern wall of the causative fault, while relative subsidence took place with the amplitude 0–15cm on the other wall. Near Shifang county, there are slightly arranged concentric fringes, reflecting another subsidence area with amplitude 0–20cm. Around the Beichuan and Anxian county, there exists a relatively small uplift of an strip area with 0–5cm along the causative fault on its both side. A small area of dense concentric fringes(indicated by a rectangle box) appeared in 30km northeast of Qingchuan, which coincide with the locations of the aftershocks Ms6.1 of 5 Aug. 2008. On the lower wall, we can see another large uplift area of sparse concentric fringes located in more than 100km southeast of Qingchuan, because it is far from the causative fault, it's impossible so large deformation took place, and it should attribute to atmospheric component. the deformation characteristics of the whole area is complicated generally.
Starting Page	1210
Ending Page	1213
File Size	343904
Page Count	4
File Format	PDF
ISBN	9781424495658
ISSN	21537003
e-ISBN	9781424495665
e-ISBN	9781424495641
DOI	10.1109/IGARSS.2010.5652899
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Earthquakes Radar tracking Atmospheric modeling Cities and towns Strain Electric shock Strips Post-seismic Deformation Wenchuan Earthquake Earthquake Activity D-InSAR
Content Type	Text
Resource Type	Article

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