PPRL Pays des Olonnes — Origin of the Risk of Predictable Natural Risks Coastal — Vendée

The origin of the risk characterises the real-world entity which, through its presence, represents a potential risk. This origin may be characterised by a name and, in some cases, a geographical object locating the actual entity causing the risk. The location of the entity and the knowledge of the dangerous phenomenon are used to define the risk pools, the risk-exposed areas that underlie the PPRL.