Incident refers to a particular occurrence, especially of minor importance. It can describe events in narratives or dramas. In law, it denotes something related to or dependent on another
Occasion refers to specific events or circumstances that demand action. Word comes from Latin "occasio" meaning opportunity or convenient time. Entered English via Old French in 14th century
Disaster means an occurrence causing widespread destruction and distress. Informal usage refers to a total failure. Obsolete meaning refers to an evil influence of a star or planet
12-story condominium building in Surfside, Florida collapsed on June 24, 2021. 98 people died, including 1 unborn child and sister of Paraguayan First Lady. Building contained 136 units, including controversial rooftop penthouse. Pool deck collapsed first, followed by central and eastern wing
Accidents result in property damage and employee injury/illness. Incidents are unplanned events causing property damage but no injuries. According to IPM, accidents make up only 2% of workplace incidents
Accident is an unintended event causing injury or property damage without foreseeability. Incident is any unplanned event causing property damage but no harm to people. Accidents can range from minor bumps to major chemical burns