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Most of the world's earthquakes occur

  • A.in the centres of the continental plates
  • B.only beneath the ocean basins
  • C.along plate boundaries
  • D.uniformly across the earth's surface

Answer: C

Correct answer: along plate boundaries

If plates are rigid and deform mainly at their edges, then the strain that earthquakes release must accumulate there, and about ninety per cent of global seismicity does lie along plate boundaries. Intraplate earthquakes do occur, and can be damaging because they strike regions with no tradition of seismic design, but they are the exception.

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