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Lookup NU author(s): Professor Zhenhong Li
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We used two tracks of ALOS PALSAR images to investigate the focal mechanism and slip distribution of the 2011 March 24, MW 6.8 Burma strike-slip earthquake. Three different SAR techniques, namely conventional interferometry, SAR pixel offsets (SPO) and multiple-aperture InSAR (MAI), were employed to obtain the coseismic surface deformation fields along the ∼30 km length of the fault rupture. Along-track measurements from SPO and MAI techniques show a high correlation, and were subsequently used to precisely determine the location and extent of the surface fault trace. The best-fitting fault model geometry derived from an iterative inversion technique suggests that the rupture occurred on a near-vertical sinistral strike-slip fault west of the Nam Ma fault with a strike of 70°. A maximum slip of 4.2 m occurs at a depth of 2.5 km, with significant slip constrained only to the upper 10 km of the crust.
Author(s): Feng W, Li Z, Elliott JR, Fukushima Y, Hoey T, Singleton A, Cook R, Xu Z
Publication type: Article
Publication status: Published
Journal: Geophysical Journal International
Year: 2013
Volume: 195
Issue: 1
Pages: 650-660
Print publication date: 25/07/2013
ISSN (print): 0956-540X
ISSN (electronic): 1365-246X
Publisher: Oxford University Press
URL: http://dx.doi.org/10.1093/gji/ggt254
DOI: 10.1093/gji/ggt254
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