Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Nat. Hazards Earth Syst. Sci., 17, 1573-1584, 2017
https://doi.org/10.5194/nhess-17-1573-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
20 Sep 2017
Transposing an active fault database into a seismic hazard fault model for nuclear facilities – Part 1: Building a database of potentially active faults (BDFA) for metropolitan France
Hervé Jomard1, Edward Marc Cushing1, Luigi Palumbo2, Stéphane Baize1, Claire David2, and Thomas Chartier1,a 1IRSN, Institute of Radiological protection and Nuclear Safety, BP17, 92262 Fontenay-aux-roses CEDEX, France
2Neodyme, Joue les Tours, 37300, France
anow at: Département de Géosciences, Ecole Normale Supérieure, Paris, 75005, France
Abstract. The French Institute for Radiation Protection and Nuclear Safety (IRSN), with the support of the Ministry of Environment, compiled a database (BDFA) to define and characterize known potentially active faults of metropolitan France. The general structure of BDFA is presented in this paper. BDFA reports to date 136 faults and represents a first step toward the implementation of seismic source models that would be used for both deterministic and probabilistic seismic hazard calculations. A robustness index was introduced, highlighting that less than 15 % of the database is controlled by reasonably complete data sets. An example of transposing BDFA into a fault source model for PSHA (probabilistic seismic hazard analysis) calculation is presented for the Upper Rhine Graben (eastern France) and exploited in the companion paper (Chartier et al., 2017, hereafter Part 2) in order to illustrate ongoing challenges for probabilistic fault-based seismic hazard calculations.

Citation: Jomard, H., Cushing, E. M., Palumbo, L., Baize, S., David, C., and Chartier, T.: Transposing an active fault database into a seismic hazard fault model for nuclear facilities – Part 1: Building a database of potentially active faults (BDFA) for metropolitan France, Nat. Hazards Earth Syst. Sci., 17, 1573-1584, https://doi.org/10.5194/nhess-17-1573-2017, 2017.
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Short summary
The French Institute of Radioactive Protection and Nuclear Safety, with the support of the Ministry of Environment, compiled a database (BDFA) in order to define and characterize known potentially active faults of metropolitan France. The general structure of BDFA is presented, containing to date a total of 136 faults (581 fault segments). BDFA represents a first step toward the implementation of seismic source models for both deterministic and probabilistic seismic hazard calculations.
The French Institute of Radioactive Protection and Nuclear Safety, with the support of the...
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