Earthquakes usually occur when rock underground suddenly breaks along a fault. This sudden release of energy causes the massive destruction that makes the ground shake. According to ranking, Shaanxi china which was occurred on January 231,556 causes severe destruction like 830,000 estimated death toll all over the world. This earthquake magnitude was 8 Mw.
More than 97 cities in China were affected. A 520-mile wide area destroyed for that affection. In some cities, it’s estimated that up to 60% of the population died. Such catastrophic losses are attributed to losing cave settlements, which collapsed as a result.
According to history definitions, if there are food shortages with large numbers of people lacking nutrition, a famine is declared only when certain measures of liveliness, nutritional dysfunction, and lackings of food are met.
It depends on changes in food demand, such as the growth of population and changes by changing on climatic conditions. Famine was first outsurged in Holland and England during the 17th century, due to advanced developments of agriculture and the implementation of improved techniques to increase crop yields. The great Chinese famines were the deadliest famines of all time which was occurred in china in a duration of 1958 to 1961. It caused deaths of 15,000,000–43,000,000 people according to statistics of government.
In accordance with the definition, pandemic/epidemic means a disease that affects a large number of people within (community, region, or population).if it outbreaks, then it causes greater anticipated areas. Tuberculosis is one of the pandemic diseases In the new modern era.
In 1800 – present (as of 2018) There were about 1 billion worldwide deaths from TB(tuberculosis) in the 19th and 20th centuries. At the time of the 19th Century, there were 7 million worldwide annual deaths from TB. In the 19th Century,700 million tuberculosis deaths leaving 300 million deaths for the 20th Century. There were 5,000,000 worldwide deaths from TB per year, respectively, 1939 and 1954. Death toll declined after the discovery of the BCG Vaccines (Bacillus Calmette– Guérin vaccine)In 2018 there were 1.5 million deaths from TB.
A meteor-shower means an event in which celestial events in which a number of the meteor are observed to radiate or originate from one point in the night sky. These meteors are caused by a stream of cosmic debris called meteoroids which enters earth atmospheres at extremely high speeds on parallel trajectories.
There were events happening in China in 1490 which were known as 1490 Ching-yang events. It has happened in Qingyang, Gansu, China. Unofficially,death toll was 10000+.
5. limnic eruption:
A limnic eruption also known as a lake overturn is a rare type of natural disaster in which dissolved carbon dioxide. It causes when happens suddenly erupts from deep lake waters, forming a gas cloud capable of suffocating wildlife, livestock, and mankind. A limnic eruption may also cause tsunamis as the rising carbon dioxide. It displaces water. Scientists believe earthquakes, volcanic activity, and other explosive events can serve as triggers for limnic eruptions.
In August 21, 1986, a limnic eruption occurs in Cameroon which was known as lake nyos disaster. It causes death toll of 1744 and livestock 3500. The eruption ejects the sudden release of about 100,000–300,000 tons (1.6 million tons, according to some sources) of carbon dioxide. The gas cloud initially rose at nearly 100 kilometres per hour (62 mph) and then, being heavier than air, downward onto nearby villages, triggering all the air and suffocating people and livestock within 25 kilometres (16 mi) of the lake.
Floods are an overflow of a large amount of water beyond its normal limits, especially over what is normally dry land. There are many things that cause floods such as- Overflowing Rivers, Broken Dams, Urban Drainage Basins, Storm Surges and Tsunamis, Channels with Steep Sides.
The 1931 China floods, or the 1931 Yangtze–Huai River floods, were a series of devastating floods that occurred in the Republic of China. They were some of the deadliest floods in history, and together formed one of the most lethal natural disasters of the 20th century. Estimates of the total death toll range from 422,499 to as many as 3.7 million to 4 million people, especially Tanka people, may have died as a result of famine and disease caused by the flood.
Wildfires mean a sweeping and destructive conflagration especially in a wilderness or a rural area. Wildfires can cause damage to property and human life, although naturally occurring wildfires may have beneficial effects on native vegetation, animals, and ecosystems that have evolved with fire.
The Peshtigo fire was a very large forest fire that took place on October 8, 1871, in northeastern Wisconsin, including much of the southern half of the Door Peninsula, and adjacent parts of the Upper Peninsula of Michigan. The largest community in the affected area was Peshtigo, Wisconsin. It burned approximately 1,200,000 acres (490,000 ha) and was the deadliest wildfire in American history, with the estimated deaths of around 1,500 people, and possibly as many as 2,500.
Heatwaves means a prolonged period of abnormally hot weather. If a heatwave occurs, many people become increasingly bad-tempered. A heatwave occurs when a system of high atmospheric pressure ups into an area and lasts two or more days. In such a high-pressure system, air from upper levels of our atmosphere is pulled toward the ground, where it becomes compressed and increases in temperature.
The 2003 European heatwave which was occurred in July 2003 to August 2003 led to the hottest summer on record in Europe since at least 1540. France was hit especially hard. The heatwave led to health crises in several countries and combined with drought to create a shortfall in parts of Southern Europe. The peer-reviewed analysis places the European death toll at more than 70,000 people.
Cyclones mean a system of winds rotating inwards to an area of low barometric pressure, with an anticlockwise (northern hemisphere) or clockwise (southern hemisphere) circulation; a depression. It is caused by a combination of strong winds driving water onshore and the lower atmospheric pressure in a tropical cyclone. In the southern hemisphere, the onshore winds occur to the left of the tropical cyclone’s path. Tropical cyclones are like giant engines that use warm, moist air as fuel.
The 1970 Bhola cyclone was a devastating tropical cyclone that struck East Pakistan and India’s West Bengal on November 3, 1970. It remains the deadliest tropical cyclone ever recorded and one of the deadliest ever. At least 500,000 people lost their lives in the storm, primarily as a result of the storm surge that flooded much of the low-lying islands of the Ganges Delta. This cyclone was the sixth cyclonic storm of the 1970 North Indian Ocean cyclone season, and also the season’s strongest.
Tsunami is a long, high sea wave caused by an earthquake or other disturbance. The loss of human lives from this latest tsunami is staggering. Tropical cyclones are like giant engines that use warm, moist air as fuel.
The 2004 Indian Ocean earthquake and tsunami (also known as the Boxing Day Tsunami and, by the scientific community, the Sumatra–Andaman earthquake occurred at 07:58:53 in the local time on 26 December, with an epicentre off the west coast of northern Sumatra, Indonesia. It was an undersea megathrust earthquake that registered a magnitude of 9.1–9.3 Mw, reaching a Mercalli intensity up to IX in certain areas. The earthquake was caused by a rupture along the fault between the Burma Plate and the Indian Plate. the tsunamis killed an estimated 227,898 people in 14 countries, making it one of the deadliest natural disasters in recorded history.