Natural Disasters

Natural disasters are disasterous changes to the earth's crust, that lead to uncontrollable weather, which cause damage to the lands shape or the lives of people and other living creatures. 
(http://www.powershow.com/view/fc89f-NjhkM/What_are_Natural_Disasters_powerpoint_ppt_presentation)

n  Volcanic eruption

n  Earthquake

n  Cyclone or Hurricane

n  Avalanche

n  Flood

n  Drought

n  Forest fire or Bushfire

Volcanic Eruption:-

A volcanic eruption is a sudden burs of gases and hot lava from an opening in the Earth’s crust. 

Earthquakes:-

An earthquake is caused when the rocks beneath the earth crust (plates),  move against each other, giant shock waves move upwards towards the surface causing the earthquake. Sometimes it is so strong that the ground splits apart.

Cyclones:-

 Cyclones are caused when wind spins uncontrollably fast in circles around a low atmospheric pressured area, creating a fierce storm. During a cyclone trees can be uprooted, buildings can be destroyed and cars can be overturned.

Avalanches:-

An Avalanche is a movement of snow, ice and rock down a mountainside. Avalanches happen very suddenly and can move as fast as a racing car up to 124mph.

Avalanches can be caused by ...
            -snow melting quickly

            - snow freezing, melting then freezing again

            -someone skiing

            -a loud noise or an earth tremor

Floods:-

A flood is caused by an overflow of water, which covers the land that is usually dry.

Floods are caused by heavy rain or by snow melting and the rivers burst their banks and overflow. Costal floods are caused by high tides, a rise in sea level, storm waves or tsunami (earthquakes under the sea).

Droughts:-

A drought is the lack of rain for a long time.

Fire:-

Fires can burn out of control in areas of forest or bush land. Lightning, sparks of electricity or careless people, causes them. Wind may blow a bushfire to areas where people live.

The disasters of England:-

• 1091 Great London Tornado                                        = Floods              =Famine
• 1235 Famine
• 1315 Great Famine
• 1348 to 1361 Black Death
• 1485 to 1552 Sweating Sickness
• 1580 Earthquake hits Dover
• 1607 Tsunami hits Bristol. ( people homeless in Devon)
• 1623 Famine
• 1638 Thunderstorm hits Devon
• 1651 Famine in Ireland
• 1665 London and Derbie Plague
• 1666 Great Fire of London
• 1690 Famine
• 1700 Small Ice Age
• 1709 Great Frost
• 1729 Tornado hits London
• 1740 Famine in Ireland
• 1755 Tsunami hits Cornwall
• 1783 Gas Attack from Iceland gets to Belfast, Glasgow and Liverpool
• 1796 Flood hits Devon
• 1816 Year without a summer
• 1816 Outbreak of Typhus in Ireland
• 1831 Outbreak of Cholera
• 1836 Major Avalanche 
• 1840 Great Irish Famine
• 1840 Highland Potato Famine
• 1848 Fishing disaster after storm in Scotland
• 1852 Flood hits Holmfirth
• 1864 Flood hits Sheffield
• 1881 Fishing disaster after storm in Scotland
• 1914 WW1
• 1918 Outbreak of the Spanish Flu
• 1928 Flood hits London
• 1939 WW2
• 1946 Severe winter
• 1952 Flood hits Lynmouth
• 1952 The great Smog in London
• 1953 Flood hits Aberdeen-Shire
• 1962 Severe Winter
• 1968 Flood hits Southern England
• 1987 Severe winds up to 60 MPH
• 1990 Severe winds up to 100 MPH
• 1998 Flood hits Midland and London
• 2000 Flood hits North England and Scotland
• 2002 Floods hits Glasgow
• 2003 Severe Heat Wave
• 2004 Flood hits Boscastle
• 2005 Flood hits Carlise 
• 2005 Tornado hits Birmingham
• 2006 Tornado hits London
• 2007 Flood in North England
• 2007 Outbreak in Swine Flu
• 2008 Flood hits Morpeth
• 2009 Severe Snow fall
• 2009 Heat Wave
• 2010 Severe Snowfall
• 2012 Predicted end of the world

"After looking at all of the disasterous hits to England, i knew that history repeats its self, and that sometime in the future floods will occur again, taking away life and leaving behind a catastrophe"

This map is really self explaining, these are all the areas within London at risk to flood completely if the Thames tides were uncontrolled. Some of the disasters could look something like :-

Although these images are computerised, yet flooding is very catastrophic and can cause the entire city of London to be buried under the Thames.......







Both of these videos visualise the flood threats of London:-

 This video carefully shows the rising of the river and the effects it will have on London.

 This Video describes how London is no longer equipped to prevent floods due to the ageing of the barriers. without a solution to stop the floods within the next couple of years, DISASTER will surely strike.