Comparison of the ranges of uncertainty captured in different seismic-hazard studies

John Douglas, Thomas Ulrich, Didier Bertil, Julien Rey

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)
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The inclusion of epistemic uncertainties, generally via logic trees (Kulkarni et al., 1984), within probabilistic seismic‐hazard assessments (PSHAs) is becoming standard for all types of studies (commercial, governmental, or research; site specific, national, regional, or global). Consequently many studies publish expected ground motions for a given annual frequency of exceedance (AFE) or return period derived from the hazard curves for the mean, median, and various fractiles (percentiles).
Original languageEnglish
Pages (from-to)977-985
Number of pages9
JournalSeismological Research Letters
Issue number5
Publication statusPublished - 1 Sep 2014


  • seismic hazards
  • epistemic uncertainty
  • ground motion level

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