Disaster is a catastrophic event adverse, unfavourable, harmful or detrimental event that cause large-scale fatalities, property and infrastructure damage, social and economical hampering and environmental disruption.

Types of disasters - by risk level

Existential Disaster / Global Catastrophic Disaster

A disaster which could damage or pose risk to lives of human being on a global scale or a disaster that could cause human extinction. If a disaster can permanently or drastically curtail humanity's potential and advancement, that is also categorised as Existential disaster.

Local Disaster

A disaster that pose threat or damage to human life at local level - country or region to be specific.

Type of disaster - by their origin

Natural Disaster

A disaster that occur due to natural processes - geological, atmospheric, hydrological etc. Hurricanes, tornadoes, earthquakes, floods, volcanoes are natural disasters.

  • Hurricane Sandy

  • Hurricane Harvey

  • Eruption of Mount St. Helens, 1980

  • Eruption of Mount Tarawera, 1886

Anthropogenic Disasters / Human-made Disaster

A disaster which happen due to human negligence, carelessness, inattention, irresponsibility, unethical deeds and works are Anthropogenic disasters. Anthro, a Greek words, means 'pertaining to humans/man , related to human life'. Terror attacks, race riots, mass shootings are man-made disasters.

  • 9/11 Attacks

  • Atomic bombings of Hiroshima and Nagasaki

  • Mumbai attacks, 2008

Technological Disasters

A disaster that is caused by either human error in controlling technology or a malfunction of a technology system. Chemical releases, ocean oil spills, natural gas explosions are technological disasters. Technological disaster is categorization under Anthropogenic disasters.

  • Chernobyl Disaster, 1986

  • Exxon Valdez oil spill, 1989

  • Great Smog of London, 1952

  • Bhopal Diaster, 1984