Disaster, in this article, a sudden, accidental event that causes many deaths and injuries. Most disasters also result in significant property damage. Common natural causes of disasters include earthquakes, floods, hurricanes and typhoons, and tornadoes. Tsunamis (popularly, but incorrectly, known as tidal waves), volcanic eruptions, wildfires, and landslides and avalanches rank among the other natural forces that sometimes create disasters.
Man made
Not all disasters are produced by the forces of nature. Many modern-day disasters involve accidents aboard passenger-carrying airplanes, ships, or railroads. Other “man-made” disasters can be traced to the collapse of buildings, bridges, tunnels, and mines, as well as to explosions and fires unintentionally triggered by humans.
Although acts of war and terrorism also inflict death and destruction, these events are intentional rather than accidental, and therefore are not considered disasters in the context of this article. For information on these topics.
Natural disaster
Natural Disaster, event of nature that takes human lives or destroys property.
Blizzard
Blizzard, severe storm characterized by extreme cold, strong winds, and a heavy snowfall. These storms are most common to the western United States but sometimes occur in other parts of the country. According to the U.S. National Weather Service, winds of 35 mph (56.3 km/h) or more and visibility of 0.25 mi (0.40 km) or less are conditions that, if they endure for three hours, define a blizzard. The great blizzard of March 11-14, 1888, which covered the eastern U.S., was perhaps the most paralyzing of any storm on record.
Cyclone
Cyclone, in strict meteorological terminology, an area of low atmospheric pressure surrounded by a wind system blowing, in the northern hemisphere, in a counterclockwise direction. A corresponding high-pressure area with clockwise winds is known as an anticyclone. In the southern hemisphere these wind