Top 5 Natural Disasters of Earth

Natural Disasters are major events caused by natural processes of the earth. They cause loss of life and damage properties and ecosystems and typically leave some economic damage in its wake, the severity of which depends on the affected population's resilience and also on the infrastructure available.

Here are Most Dangerous Natural Disasters on Earth

1. Volcanic Eruptions

Volcanoes are mountains that have an opening that erupts ashes, hot lava, and gases. Volcanoes are generally formed where tectonic plates are diverging or converging.

Volcanic eruptions happens when there is enough pressure on the magma chamber which brings the magma to surface. Volcanic eruptions destroy its nearby areas, warms up the earth's upper atmosphere, and are major threats to the aircraft. 

There are three different types of volcanic eruptions. The most well-knowned are magmatic eruptions, which involve the decompression of gas within magma that pushes it forward.

Phreato magmatic eruptions are another type of volcanic eruption, driven by the compression of gas within the magma, which is the direct opposite of the process powering magmatic activity. 

The third eruptive type is the phreatic eruption, which is driven by the superheating of steam via contact with magma; these eruptive types often exhibit no magmatic release, instead of causing the granulation of existing rock.

2. Earthquakes

An Earthquake is shaking of the surface of the earth and is caused by sudden movements of tectonic plates. Tectonic plates have faults that get stuck while sliding causing the earth to shake. 

There are thousands of earthquakes that occur on our earth but only a few are dangerous enough to destroy the surroundings. Earthquakes can also cause landslides, tsunami, and volcanic activity which can cause further damage to our earth.

There are different types of earthquakes: tectonic, volcanic, and explosion. It depends on the region where it occurs and the geological make-up of that region. The most common are tectonic earthquakes.

These happens when rocks in the earth's crust break due to geological forces by the movement of tectonic plates. Another type, volcanic earthquakes, occur in concurrence with volcanic activity. 

Collapse earthquakes are small earthquakes in underground   mines, and explosion earthquakes result from the explosion of nuclear and chemical devices.

3. Thunderstorms

Thunderstorms are recognized by the presence of lightning and its sound effect on the atmosphere. Thunderstorms start in thunder clouds. 

Thunderstorms normally happens on a hot, summer day when the atmosphere gets warm and sticky. Lightning is incredibly hot, about five times hotter than the  surface of Sun. Strong Thunderstorms can cause tornadoes and waterspouts. 

4. Blizzards

A blizzard is a severe Snowstorm. It Causes low temperature, strong winds, which can blow the snow into drifts which makes it difficult to see. Blizzards can have an huge size, and can be larger than some states.

 A very hazardous type of Blizzard is whiteout in which snowfalls are so thick that people can't even differentiate between sky and earth. This is very dangerous for pilots as they can't sense the direction they are flying. 

Blizzard happens when warm air rise to cold air. Winds pull cold air toward the equator from the poles and bring warm air toward the poles from the equator. When warm air and cold air are brought together, a front is formed and precipitation occurs.

5. Tornadoes

A Tornado is a dangerous, twisting wind which is connected from a thundercloud. It starts when the wind inside the cloud starts to turn very quickly. 

They are very dangerous as they destroy everything in their way.  Most tornadoes spins at about 18mph, but some are much fast. Wind inside a Tornado can blow at an amazing speed of 300 mph. They have the power to destroy even a city. Tornadoes can also happen at sea and are called Waterspouts. 

They usually last from several seconds to more than an hour. The longest-lived tornado in history is really unknown because so many of the long-lived tornadoes reported from the early-mid 1900s and before are believed to be tornado series instead. Most tornadoes last less than 10 minutes.

Top 5 Natural Disasters of Earth