Disaster Risk Management Terms and Concepts
Note: For further detail definitions and concepts clarity, please visit United Nation International Strategy (UNISDR) website http://www.unisdr.org/eng/terminology/terminology-2009-eng.html
Crisis
A crisis is any event that is, or is expected to lead to, an unstable and dangerous situation affecting an individual, group, community, or whole society. Management often requires decisions to be made within a short timeframe & often an event has already taken place. Generally, impact of a crisis situation is localized requiring immediate attention. Crisis situation may lead to a disaster if not managed appropriately.
Hazard
A dangerous phenomenon, substance, human activity or condition that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage. Hazard can be single, sequential or combined in their origin and effects. Each hazard is characterized by its location, intensity, frequency and probability. Hazards have following two types:-
Types of Hazards
i. Natural: Natural process or phenomenon that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage. ii. Human-induced: Conditions that may have disastrous consequences for a society. These are associated with industries or energy generation facilities and include explosions, leakage of toxic waste, pollution, dam failures. Complex Emergency is included in this category.
Categorization of Natural Hazards
i. Geological: Geological process or phenomenon that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage. ii. Socio-natural: The phenomenon of increased occurrence of certain geophysical and hydrometeorological hazard