paragrah about Natural disaster

حببايبيي اليومم يبت لكمم تقرير عنن :Natural disaster
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Natural disaster

A natural disaster is a major adverse event resulting from natural processes of the Earth; examples include floods, volcanic eruptions,earthquakes, tsunamis, and other geologic processes. A natural disaster can cause loss of life or property damage, and typically leaves some economic damage in its wake, the severity of which depends on the affected population's resilience, or ability to recover.^[1]
An adverse event will not rise to the level of a disaster if it occurs in an area without vulnerable population.^[2][3][4] In a vulnerable area, however, such as San Francisco, an earthquake can have disastrous consequences and leave lasting damage, requiring years to repair.

Avalanches

Main article: Avalanche
See also: List of avalanche
A powder snow avalanche
During World War I, an estimated 40,000 to 80,000 soldiers died as a result of avalanches during the mountain campaign in the Alps at the Austrian-Italian front, many of which were caused by artillery fire.^[5]
[edit]Earthquakes

Main article: Earthquake
See also: List of earthquakes
The 1693 Sicily earthquake
An earthquake is the result of a sudden release of energy in the Earth's crust that createsseismic waves. At the Earth's surface, earthquakes manifest themselves by vibration, shaking and sometimes displacement of the ground. The vibrations may vary in magnitude. Earthquakes are caused mostly by slippage within geological faults, but also by other events such as volcanic activity, landslides, mine blasts, and XXXXXXX tests. The underground point of origin of the earthquake is called the focus. The point directly above the focus on the surface is called the epicenter. Earthquakes by themselves rarely kill people or wildlife. It is usually the secondary events that they trigger, such as building collapse, fires, tsunamis (seismic sea waves) and volcanoes, that are actually the human disaster. Many of these could possibly be avoided by better construction, safety systems, early warning and planning. Some of the most significant earthquakes in recent times include: The 2004 Indian Ocean earthquake, the third largest earthquake recorded in history,registering a moment magnitude of 9.1-9.3. The hugetsunamis triggered by this earthquake killed at least 229,000 people.
The 2011 Tōhoku earthquake and tsunami registered a moment magnitude of 9.0. The death toll from the earthquake and tsunami is over 13,000, and over 12,000 people are still missing.
The 8.8 magnitude February 27, 2010 Chile earthquake and tsunami cost 525 lives.^[6]
The 7.9 magnitude May 12, 2008 Sichuan earthquake in Sichuan Province, China. Death toll at over 61,150 as of May 27, 2008.
The 7.7 magnitude July 2006 Java earthquake, which also triggered tsunamis.
The 6.9 magnitude 2005 Azad Jammu & Kashmir and KPK province Earthquake, which killed or injured above 75,000 people inPakistan.
[edit]Volcanic eruptions

Main articles: List of largest volcanic eruptions and Types of volcanic eruptions

Artist's impression of the volcanic eruptions that formed the Deccan Traps in India.
Volcanoes can cause widespread destruction and consequent disaster in several ways. The effects include the volcanic eruption itself that may cause harm following the explosion of the volcano or the fall of rock. Second, lava may be produced during the eruption of a volcano. As it leaves the volcano, the lava destroys many buildings and plants it encounters. Third,volcanic ash generally meaning the cooled ash - may form a cloud, and settle thickly in nearby locations. When mixed with water this forms a concrete-like material. In sufficient quantity ash may cause roofs to collapse under its weight but even small quantities will harm humans if inhaled. Since the ash has the consistency of ground glass it causes abrasion damage to moving parts such as engines. The main killer of humans in the immediate surroundings of a volcanic eruption is the pyroclastic flows, which consist of a cloud of hot volcanic ash which builds up in the air above the volcano and rushes down the slopes when the eruption no longer supports the lifting of the gases. It is believed thatPompeii was destroyed by a pyroclastic flow. A lahar is a volcanic mudflow or landslide. The 1953 Tangiwai disaster was caused by a lahar, as was the 1985 Armero tragedy in which the town of Armero was buried and an estimated 23,000 people were killed .
A specific type of volcano is the supervolcano. According to the Toba catastrophe theory 75,000 to 80,000 years ago a super volcanic event at Lake Toba reduced the human population to 10,000 or even 1,000 breeding pairs creating a bottleneck in human evolution.^[7] It also killed three quarters of all plant life in the northern hemisphere. The main danger from a supervolcano is the immense cloud of ash which has a disastrous global effect on climate and temperature for many years

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: flood
Main article: flood
See also: List of Floods
A flood is an overflow of an expanse of water that submerges land.^[8] The EU Floods directive defines a flood as a temporary covering by water of land not normally covered by water.^[9] In the sense of "flowing water", the word may also be applied to the inflow of the tide. Flooding may result from the volume of water within a body of water, such as a river or lake, which overflows or breaks levees, with the result that some of the water escapes its usual boundaries.^[10] While the size of a lake or other body of water will vary with seasonal changes in precipitation and snow melt, it is not a significant flood unless the water covers land used by man like a village, city or other inhabited area, roads, expanses of farmland, etc.

The Limpopo River, in southernMozambique, during the 2000 Mozambique flood
Some of the most notable floods include:
The Johnstown Flood of 1889 where over 2200 people lost their lives when the South Fork Dam holding back Lake Conemaugh broke.
The Huang He (Yellow River) in China floods particularly often. The Great Flood of 1931caused between 800,000 and 4,000,000 deaths.
The Great Flood of 1993 was one of the most costly floods in United States history.
The North Sea flood of 1953 which killed 2251 people in Holland and eastern England
The 1998 Yangtze River Floods, in China, left 14 million people homeless.
The 2000 Mozambique flood covered much of the country for three weeks, resulting in thousands of deaths, and leaving the country devastated for years afterward.
The 2005 Mumbai floods which killed 1094 people.
The 2010 Pakistan floods, damaged crops and infrastructure, claiming many lives.
Tropical cyclones can result in extensive flooding and storm surge, as happened with:
Bhola Cyclone, which struck East Pakistan (now Bangladesh) in 1970,
Typhoon Nina, which struck China in 1975,
Hurricane Katrina, which struck New Orleans, Louisiana in 2005, and
Cyclone Yasi, which struck Australia in 2011

Cyclonic storms

Hurricane Katrina
Main articles: Tropical Cyclone and Cyclone
See also: List of tropical cyclones
Cyclone, tropical cyclone, hurricane, and typhoon are different names for the same phenomenon a cyclonic storm system that forms over the oceans. The deadliest hurricane ever was the 1970 Bhola cyclone; the deadliest Atlantic hurricane was the Great Hurricane of 1780 which devastated Martinique, St. Eustatius and Barbados. Another notable hurricane is Hurricane Katrina which devastated the Gulf Coast of the United States in 2005.
[edit]Droughts

Main article: Drought
On the outskirts of Dadaab, Kenya, during the 2011 East Africa drought.
Drought is unusual dryness of soil, resulting in crop failure and shortage of water for other uses, caused by significantly lower rainfall than average over a prolonged period. Hot dry winds, high temperatures and consequent evaporation of moisture from the ground can contribute to conditions of drought.
Well-known historical droughts include:
1900 India killing between 250,000 to 3.25 million.
1921-22 Soviet Union in which over 5 million perished from starvation due to drought
1928-30 Northwest China resulting in over 3 million deaths by famine.
1936 and 1941 Sichuan Province China resulting in 5 million and 2.5 million deaths respectively.
In 2006, states of Australia including South Australia, Western Australia, New South Wales, Northern Territory and Queensland had been under drought conditions for five to ten years. The drought is beginning to affect urban area populations for the first time. With the majority of the country under water restrictions.
In 2006, Sichuan Province China experienced its worst drought in modern times with nearly 8 million people and over 7 million cattle facing water shortages.
12-year drought that was devastating southwest Western Australia, southeast South Australia, Victoria and northern Tasmania was "very severe and without historical precedent".
In 2011, the State of Texas lived under a drought emergency declaration for the entire calendar year. The drought caused theBastrop fires.

We must be careful of these natural disasters because they may cause us serious diseases may cost us our lives, there is no person who can stop these natural disasters except the Creator

Natural disaster
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دعوتكم للوالده ربي يرحمهاا M♥♥