Segmented faulting process of Chelungpu thrust: Implication of SAR interferograms

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Abstract

SAR interferograms have successfully determined the detailed coseismic displacements in the footwall block of the Chelungpu fault during the Mw 7.6 Chi-Chi earthquake in Taiwan on September 21,1999 (local time). Based on the 3D dislocation model of faults, we infer the preliminary rupturing behavior - a segmented rupturing process - of the Chelungpu thrust from recent SAR interferograms. A key argument controlling the rupture of the Chelungpu thrust may be the recognized segments with different sliding depths of Chinshui Shale.

Original languageEnglish
Pages (from-to)241-247
Number of pages7
JournalTerrestrial, Atmospheric and Oceanic Sciences
Volume14
Issue number2
DOIs
StatePublished - Jun 2003

Keywords

  • Chi-Chi earthquake
  • Dislocation model
  • SAR interferogram
  • Segmented rupturing

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