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The Kutch region's seismicity is associated geologically with

  • A.a transform boundary between two plates
  • B.a mid-ocean ridge buried beneath sediment
  • C.a rift basin whose bounding faults are being reactivated
  • D.an active subduction zone lying beneath the Rann itself

Answer: C

The Mesozoic rift's normal faults are being compressed and reactivated as reverse faults under the present stress field. That inversion of an old structure is why a region far from any plate boundary suffers large earthquakes.

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