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A deterministic seismic hazard analysis differs from a probabilistic one in that it

  • A.produces a uniform hazard spectrum directly
  • B.considers a specific earthquake scenario
  • C.assigns probabilities to every possible source
  • D.requires no information about local faults

Answer: B

Correct answer: considers a specific earthquake scenario

A deterministic analysis selects a particular source and magnitude - typically the maximum credible event on the nearest active fault - and computes the motion it would produce. A probabilistic analysis integrates over all sources, magnitudes and distances with their rates of occurrence, producing a motion with a stated annual probability of exceedance.

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