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- Title
Probabilistic seismic hazard analysis for a nuclear power plant site in southeast Brazil.
- Authors
de Almeida, Andréia Abreu Diniz; Assumpção, Marcelo; Bommer, Julian J.; Drouet, Stéphane; Riccomini, Claudio; Prates, Carlos L. M.
- Abstract
A site-specific probabilistic seismic hazard analysis (PSHA) has been performed for the only nuclear power plant site in Brazil, located 130 km southwest of Rio de Janeiro at Angra dos Reis. Logic trees were developed for both the seismic source characterisation and ground-motion characterisation models, in both cases seeking to capture the appreciable ranges of epistemic uncertainty with relatively few branches. This logic-tree structure allowed the hazard calculations to be performed efficiently while obtaining results that reflect the inevitable uncertainty in long-term seismic hazard assessment in this tectonically stable region. An innovative feature of the study is an additional seismic source zone added to capture the potential contributions of characteristics earthquake associated with geological faults in the region surrounding the coastal site.
- Subjects
EARTHQUAKE hazard analysis; NUCLEAR power plants; GEOLOGIC faults; EPISTEMIC logic; UNCERTAINTY
- Publication
Journal of Seismology, 2019, Vol 23, Issue 1, p1
- ISSN
1383-4649
- Publication type
Article
- DOI
10.1007/s10950-018-9755-8