(What is a disaster?.In International Federation of Red Cross and Red Crescent Societies(2019).Retrieved from https://www.ifrc.org/en/what-we-do/disaster-management/about-disasters/what-is-a-disaster)
“A disaster occurs when a hazard impacts on vulnerable people.”
The combination of hazards, vulnerability and inability to reduce the potential negative consequences of risk results in disaster.
Natural disasters are those that occur without direct human involvement. Often, there is a human contribution such as failure to alert, vulnerability and exposure.
E.g. Earthquake, Volcanic eruptions, Cyclones, Landslides