Epic Disasters: The World's Worst Disasters: World Disaster Information

A world disaster or catastrophe is an event involving a serious disturbance of public security arose, whereby the lives and health of many people, the environment or material interests seriously threatened or harmed, and that a coordinated deployment of services and organizations of different disciplines is required to counter the threat to eliminate or reduce the harmful effects.

Practically there is no strict separation between a crisis and a disaster. By a disaster are many people and agencies involved. That could be the role of a victim, someone who is damaged, rescuer, driver, survivor or otherwise.

It can be categorized into few types of disasters:

Natural world disaster

Landslides
Earthquakes
Volcanic eruptions
Fires
Hurricanes
Cyclones
Flooding
Tsunamis and other tidal waves
Epidemics

A number of very rare events that can lead to a world disaster are:

Eruption of a super volcano.
Impacts of a planetoids or comet.
Hyper nova or supernova of a nearby star.

People induced disaster

A disaster resulting from human activity or human presence which also known as man-made disaster, such as humanitarian caused by war, aircraft, train, nuclear accidents and environmental disasters.

Terrorists attack, USA 9/11/2001

Vietnam war: Viet Cong dead after an attack on the perimeter of Tan Son Nhut Air Base (photo: SP5 Edgar Price Pictorial A.V. Plt. 69th Sig. Bn. (A) (photo: Wikimedia Commons/ The Vietnam Center and Archive.)

Culture disaster

A Culture disaster is a disaster which results that the continuity of a culture seriously affected and that many of the important aspects of a civilization will be lost.

some of these heads were lost due to natural disasters and others due to cultural disasters

one of Ireland's oldest monastic islands

Humanitarian disaster

When a long event disastrous consequences has for large groups of people this is said a humanitarian disaster. This can be the result from human activities or nature.