Namely inherited by its double "reactive" and "proactive" dimensioning, the multisacalar status of the resilience concept is illustrated here by the storm Xynthia, which occured in France on February 2010. Through designing this disaster as a structural traduction of townplanning dysfunction, resilience appears to formalize a paradigmatic change of natural risk treatment, namely applied to urban development strategies.Par sa double nature " réactive " et " proactive ", le statut multiscalaire du concept de résilience est ici illustré par la tempête Xynthia qui a balayé la France fin février 2010. En concevant la catastrophe comme un révélateur des structures et des dysfonctionnements de la ville, le concept de résilience permet alors de for...