No specific manner of death or number of fatalities defines a mass fatality incident. According to the National Association of Medical Examiners, a mass fatality incident is defined as “any incident resulting in more decedents to be recovered than can be managed in the local Medical Examiner/Coroner jurisdiction.” This broad definition can cover anything from a mass shooting or a weather event like Hurricane Katrina to the ongoing COVID-19 pandemic.
Keep in mind that mass fatality and mass casualty are two different things. But what is the difference between a mass fatality incident and a mass casualty incident?