| Egenskap | Stereotype | Beskrivelse | Type | Multiplisitet | 
                
                    
                        | probabilityOfOccurrence | voidable |  | Probability | 1..1 | 
                    
                        | returnPeriod | voidable |  | Number | 1..1 | 
        
     
    
        
                
                    
                        | Navn | Type | Lengde | Multiplisitet | 
                
                    
                        |  | Probability |  | 1..1 | 
                    
                        |  | Number |  | 1..1 | 
        
     
    
        
            
                
                    | Name | Type | English | Description | 
            
                
                    | probabilityOfOccurrence | Probability |  | The probability of occurrence of a hazard event, expressed as a value between 0 and 1. 
-- Description --
This is the inverse value of the return period. | 
                
                    | returnPeriod | Number |  | Long-term average interval of time or number of years within which an event will be equalled or exceeded [UNESCO]. |