Examples of Natural Disasters

There is talk of natural disasters to refer to traumatic events of great magnitude for human society, whose effects are linked to phenomena of nature and even those derived from certain activities of man, as is the case of large industrial pollutions. For example: hurricanes, fires, earthquakes.

The cost of natural disasters usually involves the numerous loss of life, humans and animals, as well as the impact of ecosystems entire or human settlements of any kind. In that the natural phenomena, which are isolated natural events, without traumatic consequences for human life, from disasters themselves.
Broadly speaking, natural disasters can be classified according to the type of risk mechanisms they involve, namely:

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Examples of natural disasters

1. Meteor impacts. Luckily, unusually, they consist of the fall of massive objects from space, whose impacts against the surface terrestrial would lead to the suspension of large clouds of matter in the atmosphere and other destructive phenomena leading to extinction massive. One of the most accepted theories about the extinction of dinosaurs (and 75% of life on earth) 65 million years ago, accuses the impact of a meteorite in Yucatan, Mexico.
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2. Avalanches or avalanches. Characterized by the abrupt displacement of large amounts of matter, downhill in a Mountain. Such matter can be snow, ice, stones, mud, dust, trees, or a mix of it. One of the deadliest avalanches in history took place on September 20, 2002 in Russia, when a glacier melt washed away the North Ossetian town of Ninji Karmadon, killing 127 people.

1. Hurricanes, Cyclones or Typhoons. They are cyclical systems of stormy winds that form in the ocean and can rotate at more than 110 kilometers per hour, carrying huge rain clouds and subjecting everything in its path to the force of its winds. The most destructive tropical cyclone of the 20th century was Hurricane Sandy, which in 2005 affected the Bahamas Islands and the south off the American coast, leaving a trail of destruction and flooding in its wake that killed at least 1833 people.
2. Big fires. Whether produced by the hand of man or as a result of other accidents and explosions, the uncontrollable action of fire in natural or urban areas is usually one of the most disastrous possible. The city of London, for example, suffered a gigantic fire in 1666 that lasted three full days and destroyed the medieval city center, leaving 80,000 people homeless.
3. Earthquakes and tremors. Product of the movements of the earth's crust, they are usually unexpected and devastating, especially since they can cause volcanic eruptions or tsunamis once they have finished. An earthquake measuring 7.0 on the Richter scale took place in Haiti in 2010, the effects of which on the already impoverished nation, together with the subsequent tsunami, killed more than 300,000 people.

1. Radioactive pollution. By spreading atomically unstable substances, whose main condition is to emit toxic particles to the environment, causing immediate damage, disease and long-term damage in all forms of life surrounding. The accident at the Chernobyl nuclear reactor in the former Soviet Union, the most serious of nuclear accidents in history, is famous. As a result, 600,000 people received lethal doses of radiation, 5 million lived in contaminated areas and 400,000 in areas that are now uninhabitable.
2. Floods. Usually the product of long periods of rain on poorly absorbent soils (such as deforested), they are accumulations of water in uncontrollable volumes, submerging crops, villages and shooting other types of river disasters. The great flood suffered in Argentina by the population from Pergamino, in the province of Buenos Aires in April 1995, forced the evacuation of more than 13,000 people.
3. Tornadoes. Like those often experienced in the southern part of the United States, they are the product of the collision of two air masses of different temperatures, formed from a storm and that can rotate around each other at great speeds, wiping out everything in its path. The fastest in history (over 500kmph) was recorded in Moore, Oklahoma, in 1999.

1. Pandemics. Or outbreaks of highly infectious microbiotic agents that escape all sorts of quarantine or control can decimate entire populations without proper scientific support. Such was the case of the Ebola epidemic in western Africa between 2014 and 2016, whose official balance is 11,323 deaths.
2. Volcanic eruptions. In which the chemical material found under the earth's crust finds cracks or fissures through which to escape, throwing gases, ash and even boiling lava around it. There have been tragic volcanic eruptions in history, such as that of Vesuvius, a volcano that in AD 79. C. it completely buried the ancient Roman city of Pompeii, in what is now the Bay of Naples.

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