Incident characteristics include:
- usually of a short duration (hours or days)
- primary command decisions made at the incident scene
- strategy, tactics and resource assignments determined on scene
- usually a local emergency will not be declared and a local EOC may not be activated
- a single event (however, there can be more than a single incident; i.e., multiple incidents)
- with a defined geographical area
- will use local resources; but mutual aid may be involved
- may be only one or a few agencies involved (i.e., fire)
- ordinary threat to life and property - limited population and geographic area
A disaster is defined as a sudden calamitous emergency event bringing great damage, loss or destruction. Disasters may occur with little or no advance warning, e.g., an earthquake, or a flash flood, or they may develop from one or more incidents; e.g., a major brush fire.
Distinguishing characteristics include:
- generally affects a widespread population and geographic area
- will last over a substantial time period (days to weeks)
- local goverment will proclaim an emergency (as may other levels, such as state/federal)
- Emergency Operations Centers are activated to provide central overall coordination of jurisdiction assets, department and incident support functions and initial recovery coordination
- single or multiple event (can have many separate incidents associated with it)
- resource demand is beyond local capabilities and extensive outside aid/support is needed
- many agencies and jurisdications involved, including multiple layers of government
- extra-ordinary threat to life and property
Next Bulletin: Incident Command System