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Solid Earth Geophysics

  • Imaging earth’s interior using seismic tomography
  • Earthquake Transients and Mechanics of Active Deformation
  • Seismic Hazard Analysis
  • Seismological investigations of significant events occurring in Pakistan
  • Study of active faults

Figure (a) shows a schematic diagram of a deformation during the seismic cycle. The numbers (1) and (2) represent how the fault behaves during the co-seismic (i.e. at the time of earthquake) and interseismic (i.e. long term strain accumulation along the fault) phases, whereas number (3) demonstrates the visco-ealstic relaxation of lower crust and upper mantle following an earthquake. Figure (b) depicts the complex slip distribution of an earthquake and how the occurrence of an earthquake increases and decreases the Coulomb failure stresses on nearby faults. The remaining figures demonstrate that how the satellite (I.e. InSAR data) well resolved the deformation, which observed across the fault during Interseismic and postseismic phases within a precision of millimeter.



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