Comparisons between SHARE and current national seismic hazard maps for France

Myriam Belvaux (1) , John Douglas (1) , Thomas Ulrich (1)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)

The EU‐FP7 project SHARE has recently delivered the first complete harmonized model characterizing the seismic hazard and its uncertainty in Europe. For the purpose of EN 1998, national territories are subdivided by the National Authorities into seismic zones depending on the seismic hazard level. The paper presents and discusses some of the SHARE results with respect to the seismic hazard map that is the basis of the French seismic design code. It highlights several issues for improving the French seismic zonation, as well as some criticisms of the SHARE model for France.

Mots clés: France; probabilistic seismic hazard assessment (PSHA); seismic hazard maps; SHARE

Domaines: Géophysique [physics.geo-ph]

Myriam Belvaux, John Douglas, Thomas Ulrich. Comparisons between SHARE and current national seismic hazard maps for France. C. Butenweg; D. Kaiser. Seismic Hazard Harmonisation in Europe (SHARE) , Nr. 16, 2014, DGEB-Publikation, 3-930108-12-7. ⟨hal-01133796⟩