Present-Day crustal deformation field in China continent inverted from GPS observations, earthquake moment tensor and quaternary fault slip rates

  • Xu Cai-jun
  • Wang Hua
  • Liu Jing-nan


Based on the bi-cubic Bessel spline function method, we have inverted the present-day crustal horizontal velocity field and deformation field in China continent by combining with 410 GPS observations, 327 seismic moment tensors of earthquakes and fault slip rates in China and its neighboring areas, and considered the geological and geophysical parameters at the same time. The results reveal that the crustal movement mostly takes on compression in SN-NE direction and extension in EW-NW direction in China continent. The continent is rotating southeast and takes on a clockwise rotation image from the west to the east, particularly in the southeast of Tibet and Chuan-dian area. Different blocks have different deformation in China continent. The south China, Ordos and Northeast block have good integrity. The deformation in the western part of China is obviously stronger than that in the eastern part. The strong strains are focused on the Himalaya, east Tibet, west Tian Shan and Chuandian block etc. The deformation at the joint of blocks is stronger than that within the blocks. The China continent deformation not only has the strike-slip faulting and extrusion feature but also has the crustal shortening and thickening feature.

Key words

China continent tectonic deformation field bi-cubic spline function joint inversion GPS 

CLC number

P 228.4 P 315.72+


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Copyright information

© Springer 2003

Authors and Affiliations

  1. 1.School of Geodesy and GeomaticsWuhan UniversityWuhan, HubeiChina
  2. 2.GPS Engineering Research CenterWuhan UniversityWuhan, HubeiChina

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