Co-seismic deformation of the 2010 Mw6.9 Yushu earthquake from InSAR images

Shen Qiang; Qiao Xuejun; Wang Qi; Zhang Jingfa; Tan Kai; Yang Shaomin

doi:10.3724/SP.J.1246.2011.00005

Geodesy and Geodynamics (Nov 2011)

Co-seismic deformation of the 2010 Mw6.9 Yushu earthquake from InSAR images

Shen Qiang,
Qiao Xuejun,
Wang Qi,
Zhang Jingfa,
Tan Kai,
Yang Shaomin

Affiliations

Shen Qiang: Institute of Seismology, China Earthquake Administration, Wuhan 430071, China
Qiao Xuejun: Institute of Seismology, China Earthquake Administration, Wuhan 430071, China
Wang Qi: Institute of Seismology, China Earthquake Administration, Wuhan 430071, China
Zhang Jingfa: Institutes of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China
Tan Kai: Institute of Seismology, China Earthquake Administration, Wuhan 430071, China
Yang Shaomin: Institute of Seismology, China Earthquake Administration, Wuhan 430071, China

DOI: https://doi.org/10.3724/SP.J.1246.2011.00005
Journal volume & issue: Vol. 2, no. 4
pp. 16 – 20

Abstract

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Co-seismic ground-surface deformation of the Yushu earthquake on April 14, 2010 is studied on the basis of interferometry principle by using InSAR images from ALOS PALSAR and ENVISAT ASAR pairs. The observed maximum line-of-sight displacement is 54 cm, which is equivalent to a sinistral strike slip of 180 cm on the surface. The location of macro-epicenter is very close to the epicenter determined by in situ investigation, suggesting that InSAR is an ideal tool for quick identification of the macro-epicenter, and thus for timely disaster assessment after a destructive earthquake.

Published in Geodesy and Geodynamics

ISSN: 1674-9847 (Print)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Science: Astronomy: Geodesy; Science: Physics: Geophysics. Cosmic physics
Website: https://www.keaipublishing.com/en/journals/geodesy-and-geodynamics/

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