A near miss, near death, near hit, or close call is an unplanned event[citation needed] that has the potential to cause, but does not actually result in human injury, environmental or equipment damage, or an interruption to normal operation.[1]
OSHA defines a near miss as an incident in which no property was damaged and no personal injury was sustained, but where, given a slight shift in time or position, damage or injury easily could have occurred. Near misses also may be referred to as near accidents, accident precursors, injury-free events and, in the case of moving objects, near collisions.[2] A near miss is often an error, with harm prevented by other considerations and circumstances.[3]