Intro to Natural Disasters

Intro to Natural DisastersNatural disasters are the effects of a natural hazard. It negatively affects the lifestyle, the land, the economy and has long-term consequences. Natural disasters can be caused by naturally occurring events. They usually occur when the earth’s natural processes concentrate energy and then release it. In reality, they are just internal process of earth’s energy flow but when they occur, these natural processes becomes natural disasters.

They are events that lead to hardships, sufferings and awful tragedies. The consequences can be critical damage to infrastructure such as destruction of roads, bridges, buildings, houses etc. It can also result into limitless injuries and even deaths. They have negative influence on businesses as well. The cost of rebuilding the business and infrastructure is a solemn problem for the sufferers of natural disasters. The adverse effects of economy leave some of the longest-lasting trauma.

The areas affected by natural disaster are beyond repair or takes a lot of time to become liveable again. Scientists and geologists put together a lot of effort in predicting major disasters, with all the technology available, and prevent as much damage as possible.

Natural disasters include earthquakes, hurricanes, flooding, tsunami, drought etc.

  • Earthquake

Earthquake is a result of sudden release of energy that causes a sudden shake and collision of earths’ plates. The magnitude of vibration varies each time. Earthquakes usually occur at the boundaries where the plates met each other. Earthquakes can result in collapsing of buildings and bridges. It may cause deaths and injuries in a populated area. After an earthquake, aftershocks may also occur causing the further damage.

  • Flood

Flood is submerging of dry land due to overflow of water. It is temporarily covering of dry land with water. It is caused by the overflowing of water bodies such as a river or lake. Floods often cause damage to the homes and businesses located near the banks of river. The crops located near river are usually destroyed. The damage can be reduced by emigrating away from the banks of river.

  • Hurricane

A hurricane is a severe tropical storm which exceeds a constant speed of at least 74 miles per hour. They are accompanied by thunderstorms. A hurricane brings high winds, heavy rain and surging storm. Floods caused by heavy rain throughout a hurricane can cause severe damage and loss of life. More dangerous than the flood can be winds of hurricane which can devastate coastal communities.

  • Tsunami

Tsunami is a series of water waves caused by the displacement of water. They are caused by the earthquakes that occur in water bodies. They usually occur in a sea or ocean. The adverse effects of tsunami are quite similar to the effects of a flood.

  • Drought

Drought occurs due to deficiency of water supply in an area in extended period of time. It can even last for years. It can also reduce water quality. It has devastating effects on the surroundings and the communities nearby. Crops are destroyed and it leads to migration of local communities.