multicasualty incident

multicasualty incident (MCI),

an event, usually sudden, resulting in injury or illness in a large number of people; the weight accorded that number often predetermined by local criteria.
A technological or natural disaster —e.g., a multivehicular pileup—which can be managed by local emergency medical services.

multicasualty incident

Public health A 'minor' man-made–technological or natural disaster which can be managed by local emergency medical services. See National Disaster Medical System. Cf Mass disaster.