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Rotation change in the orientation of the centre-of-figure frame caused by large earthquakes
Zhou, Jiangcun1; Sun, Wenke2; Jin, Shuanggen3; Sun, Heping1; Xu, Jianqiao1
2016-08-01
Source PublicationGEOPHYSICAL JOURNAL INTERNATIONAL
Volume206Issue:2Pages:999-1008
AbstractA method to estimate the rotation change in the orientation of the centre-of-figure (CF) frame caused by earthquakes is proposed for the first time. This method involves using the point dislocation theory based on a spherical, non-rotating, perfectly elastic and isotropic (SNREI) Earth. The rotation change in the orientation is related solely to the toroidal displacements of degree one induced by the vertical dip slip dislocation, and the spheroidal displacements induced by an earthquake have no contribution. The effects of two recent large earthquakes, the 2004 Sumatra and the 2011 Tohoku-Oki, are studied. Results showed that the Sumatra and Tohoku-Oki earthquakes both caused the CF frame to rotate by at least tens of mu as (micro-arc-second). Although the visible co-seismic displacements are identified and removed from the coordinate time-series, the rotation change due to the unidentified ones and errors in removal is non-negligible. Therefore, the rotation change in the orientation of the CF frame due to seismic deformation should be taken into account in the future in reference frame and geodesy applications.
KeywordNumerical Solutions Reference Systems Space Geodetic Surveys Earthquake Ground Motions
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1093/gji/ggw182
WOS KeywordTERRESTRIAL REFERENCE FRAME ; SUMATRA-ANDAMAN EARTHQUAKE ; GEOCENTER MOTION ; GRAVITY CHANGES ; INTERNAL DISLOCATIONS ; POINT DISLOCATION ; SPHERICAL EARTH ; DEFORMATION ; ORIGIN ; IMPACT
Indexed BySCI
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000379772500018
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16117
Collection南极天文中心
Affiliation1.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China
2.Univ Chinese Acad Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Planetary Sci, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Jiangcun,Sun, Wenke,Jin, Shuanggen,et al. Rotation change in the orientation of the centre-of-figure frame caused by large earthquakes[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2016,206(2):999-1008.
APA Zhou, Jiangcun,Sun, Wenke,Jin, Shuanggen,Sun, Heping,&Xu, Jianqiao.(2016).Rotation change in the orientation of the centre-of-figure frame caused by large earthquakes.GEOPHYSICAL JOURNAL INTERNATIONAL,206(2),999-1008.
MLA Zhou, Jiangcun,et al."Rotation change in the orientation of the centre-of-figure frame caused by large earthquakes".GEOPHYSICAL JOURNAL INTERNATIONAL 206.2(2016):999-1008.
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