Official European Definition
Other International Definitions
A serious disruption of the functioning of a community or a society involving widespread human, material, economic or environmental losses and impacts, which exceeds the ability of the affected community or society to cope using its own resources . Disasters are often described as a result of the combination of: the exposure to a hazard; the conditions of vulnerability that are present; and insufficient capacity or measures to reduce or cope with the potential negative consequences. Disaster impacts may include loss of life, injury, disease and other negative effects on human physical, mental and social well-being, together with damage to property, destruction of assets, loss of services, social and economic disruption and environmental degradation.
Event that causes great damage or loss .
- 2009 UNISDR Terminology on Disaster Risk Reduction
- [http://www.iso.org/iso/catalogue_detail?csnumber=50295 ISO/PAS 22399:2007 Societal security - Guideline for incident preparedness and operational continuity management.]