» For other uses of Hazard, see Hazard (disambiguation) A Hazard is a situation which poses a level of threat to life, health, property or environment. Most hazards are dormant or potential, with only a theoretical risk of harm, however, once a hazard becomes 'active', it can create an emergency situation. Modes of a Hazard A hazard is usually used to describe a potentially harmful situation, although not usually the event itself - once the incident has started it's classified as an emergency o… (More on Hazard)