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 occur when there is enough pressure on the magma chamber which pushes magma to surface. Volcanic eruptions destroy surrounding areas, heating up the earth’s upper atmosphere, and are threats to aircraft. There are three different types of volcanic eruptions. The most well-observed are magmatic eruptions, which involve the decompression of gas within magma that propels it forward. Phreatomagmatic eruptions are another type of volcanic eruption, driven by the compression of gas within the magma, 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.
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 occur when rocks in the earth’s crust break due to geological forces created by the movement of tectonic plates. Another type, volcanic earthquakes, occur in conjunction with volcanic activity. Collapse earthquakes are small earthquakes in underground caverns and mines, and explosion earthquakes result from the explosion of nuclear and chemical devices
Thunderstorms are storms that are identified by the presence of lightning and its audible effect on the atmosphere.
Thunderstorms start in cumulonimbus clouds. Thunderstorms usually occur on a hot, summer day when the air is warm and sticky. Lightning is incredibly hot, about five times hotter than the Sun’s surface. Strong Thunderstorms can cause tornadoes and waterspouts. Thunderstorms are most likely in the spring and summer months and during the afternoon and evening hours, but they can occur year-round and at all hours. Along the Gulf Coast and across the southeastern and western states, most thunderstorms occur during the afternoon.
- Sushant Singh Rajput-Found dead in his apartment | Wikitrends
- Kylie Jenner net worth, Bio, Cosmetics, Relationship
- Spiderman | Bio, Origins, Powers, Abilities | Wikitrends
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 immense size, larger than some states. A very dangerous type of Blizzard is whiteout in which snowfalls are so thick that people can’t even distinguish between sky and earth. This is also 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.
Hurricanes are giant storms that begin over warm tropical seas. Hurricanes are also known as tropical cyclones. Hurricanes can be enormous in size. Some measure 1,800 miles across and even the smallest are about half the size of Britain. Hurricanes are formed where ocean water with temperate above 80 degrees F and the wind blows in the same direction as that of upward force.
Wind inside a hurricane can blow at over 180 mph. The eye of the storm is in the hurricane’s center. As the eye passes over land, there’s a break in the storm for some time but then it begins again. Hurricane Camille of 1969 had the highest wind speed at landfall, at an estimated 190 miles per hour when it struck the Mississippi coast. This wind speed at landfall is the highest ever recorded worldwide.
A Tornado is a fierce, twisting wind which hangs from a thundercloud. It starts when the wind inside the cloud starts to spin very quickly. They are very dangerous as they suck up everything in their way. Most tornadoes travel at about 18mph, but some are speedier movers. Wind inside a Tornado can blow at an amazing speed of 300 mph. tornadoes have devastating power to destroy even a city. Tornadoes can also occur at sea. They are called Waterspouts. Tornadoes can 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.
For More Info on Natural Disasters: National Geographic