natural disaster


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its all about natural disasters and about what happen in Japan


Presentation Transcript

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Natural Disasters

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Natural Disasters CONTENTS:-

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Natural Disasters Natural disasters are extreme, sudden events caused by environmental factors that injure people and damage property. Earthquakes, windstorms, floods, and disease all strike anywhere on earth, often without warning. As examples, we've chosen disasters that have occurred around the world throughout history. A natural disaster is a disaster caused by nature, such as floods, volcanic eruptions, earthquakes , tsunamis , avalanches, lahars (volcanic mudslides), landslides, sinkholes, blizzards , drought , hailstorms, heat waves, hurricanes, tropical storms, typhoons, Ice Ages, tornadoes, and wildfires. Epidemics caused by bacteria or viruses are sometimes considered natural disasters, but sometimes put into a different category. A biological threat such as locusts or toxic fungi could also be considered a natural disaster .

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TYPES OF NATURAL DISASTERS Geological disasters Avalanches Earthquakes Volcanic eruptions Hydrological disasters Floods Limnic eruptions Tsunamis Meteorological disasters Blizzards Cyclonic storms Droughts Hailstorms Tornadoes Tornado


Earthquake Sudden shaking of the Earth Can cause great damage Duck under desk during an Earthquake


Hurricanes Storms that form in warm ocean water. When they come onto land, the heavy rain, strong winds and heavy waves can damage buildings, trees and cars.


Tornadoes Nature ’ s most violent storms Formed from thunderstorms and have a funnel shape Very destructive when they touch the ground


Tsunamis A giant sea wave caused by an Earthquake in the ocean Crashes on land and destroys everything in it ’ s path


Volcanoes A mountain that opens up on the Earth ’ s surface and releases molten rock Lava pours out of the top and destroys everything in it ’ s path

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Some Recent Natural Disaster News

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Saturday 21 May 2011 At least five boys killed as rescuers dig by hand to reach 24 children and adults trapped under mud. Malaysian orphans killed by landslide Monday 16 May 2011 Final nine victims declared dead after DNA testing could not be used to identify them Last New Zealand earthquake victims identified

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1.-Flooding in China - 1931 The communities located along the Yangtze River were covered by water during July and August, becoming one of the most serious episodes since it is estimated that 3.7 million people died from drowning or from disease and hunger. 2.-cyclone in Pakistan - 1970 On November 12th a hurricane with winds of 190 miles per hour caused a seven-foot storm surge hit the East Pakistan (now Bangladesh) and killed about 300,000 people. 3 .- Earthquake in Tangshan, China - 1976 The official death toll is 255 thousand, but other sources estimate comes to 655 thousand. However, this is probably the largest number of casualties that has left an earthquake in the last four centuries. 4 .- Super Typhoon Nina in China - 1975 This storm, during which 104 centimeters of rain fell in one day-average over a year ago, contributed to the breakup of the Banqiao Dam, causing 229 000 deaths. 5 .- Earthquake and tsunami in the Indian Ocean - 2004 With a magnitude of between 9.1 and 9.3 on the Richter scale, this is the third largest earthquake in the world since 1900, which triggered a tsunami that is what has caused more deaths than any other in history, with a total of 227 000 898 dead or missing. 6 .- Haiyuan Earthquake, China - 1920 The quake, 7.8 on the Richter scale, caused a large number of landslides and cracks in the soil throughout the area. The flow of some rivers was blocked by walls of mud and stone and other changed course. 200 000 lives were lost. The top 10 natural disasters that shook the world in the last 100 years

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7 .- Earthquake, Kwant, Japan - 1923 The area of ​​Tokyo and Yokohama reported extreme devastation, prompting strong fire which destroyed some 381 000 homes of almost 700 thousand that were partially or completely destroyed. The death toll rose to 142 000 800. 8 .- Cyclone in Bangladesh - 1971 The weather phenomenon hit the Chittagong in Bangladesh killing more than 138 thousand people and causing severe damage estimated at 500 million billion dollars. 9 .- Earthquake in Turkmenistan - 1948 The earthquake in Turkmenistan, then part of the Soviet Union left extensive damage Ashjabat and nearby communities, where almost all brick buildings collapsed killing 110 000 people. 10 .- Floods in Vietnam - 1971 About 100 000 deaths caused severe flooding left by the overflow of the Red River in North Vietnam, but since then recorded the Vietnam War has not been sought accurate information on the event. 11 .- Japan Earthquake and Tsunami in 8.9: 11 Mar 2011 earthquake that shook much of the east coast of Japan had a magnitude of 8.9 degrees on the Richter scale, the largest in the history of Japan, killing more than 5 000 people and hundreds of millions of wastage Economics, then was accompanied by Tsunami which destroyed the coastal part of that place. In the 10 disasters listed, not including the January 2010 earthquake in Haiti because the range of estimates of deaths vary widely between 92 thousand and 300 thousand.

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On December 12, 2010, a year ago, an earthquake with a strength of 7.0 on the Richter scale shook Haiti. This is the most powerful earthquake rocked the island nation has ever had in 200 years. Epicenter of the quake was located about 16 kilometers south of the capital, Port-au-Prince. Although not how big, really powerful impact, 200 thousand Haitians were killed. Strong winds, tsunamis, earthquakes, volcanic eruptions could kill thousands of people in at once. Often what the exact death toll resulting from the disaster had never known. In addition, it was impossible to compare the impact of natural disasters in the modern era and in the past for sure. One reason, at this time the population increased dramatically compared to a few centuries ago. Disaster in the present potential to kill more people. Most Deadly Disasters

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The earthquake occurred 130 km (80 miles) east of Sendai and 373 km (231 miles) northeast of Tokyo. Magnitude 9.0 NEAR THE EAST COAST OF HONSHU, JAPAN Friday, March 11, 2011 at 05:46:23 UTC

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Tsunami waves swept away houses and cars in northern Japan and pushed ships aground. The tsunami waves traveled far inland, the wave of debris racing across the farmland, carrying boats and houses with it. Houses were washed away by tsunami in Sendai, Miyagi Prefecture in eastern Japan, after Japan was struck by a magnitude 9.0 earthquake off the northeastern coast. The earthquake caused some damage – but the tsunami was devastating The tsunami, seen crashing into homes in Natori .

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Magnitude 9.0 NEAR THE EAST COAST OF HONSHU, JAPAN Friday, March 11, 2011 at 05:46:23 UTC This is one of the largest earthquakes that Japan has ever experienced. . Part of houses swallowed by tsunami burn in Sendai, Miyagi Prefecture (state) after Japan was struck by a strong earthquake off its northeastern coast Friday, March 11, 2011. In downtown Tokyo, large buildings shook violently. Elsewhere severe flooding occurred due to a tsunami generated by the earthquake.

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The quake rattled buildings and toppled cars off bridges and into waters underneath. Waves of debris flowed like lava across farmland, pushing boats, houses and trailers toward highways . A number of fires broke out including one at an oil refinery which was burning out of control. Giant fireballs rise from a burning oil refinery in Ichihara, Chiba Prefecture (state) after Japan was struck by a strong earthquake off its northeastern coast Friday, March 11, 2011. Fires after earthquakes are often caused by broken gas pipelines

The Tsunami hits:

The Tsunami hits

Effects of the Tsunami:

Effects of the Tsunami

Effects: The day after in Kesennuma City, Miyagi (the worst hit area):

Effects: The day after in Kesennuma City, Miyagi (the worst hit area)

The effects: buildings have been destroyed or dragged around and destroyed, while people are in shock.:

The effects: buildings have been destroyed or dragged around and destroyed, while people are in shock.

Responses: The emergency services are trained to deal with the effects of earthquakes but were not prepared for anything on this scale. :

Responses: The emergency services are trained to deal with the effects of earthquakes but were not prepared for anything on this scale.

Amazing stories - man rescued after his house has been dragged 10 miles out to sea by the returing water.:

Amazing stories - man rescued after his house has been dragged 10 miles out to sea by the returing water.

International Support:

International Support

Danger from the nuclear power station damaged by the earthquake.:

Danger from the nuclear power station damaged by the earthquake.

People evacuated and the injured in emergency shelters and hospitals:

People evacuated and the injured in emergency shelters and hospitals

Ordinary people and rescuers search amongst the debris:

Ordinary people and rescuers search amongst the debris

The full scale: Before and after in Sendai.:

The full scale: Before and after in Sendai.

Drowned towns and radiation leaks – :

Drowned towns and radiation leaks – More than 1,700 people officially dead or missing, with many more unaccounted for, including 9,500 people in one town. Radiation leaks from a damaged nuclear plant after an explosion blows off the roof, raising fears of a meltdown at the nuclear power station north of Tokyo. Three workers suffer radiation exposure near Fukushima nuclear plant. Several large towns and cities are more than a third submerged by waters and debris. Some 215,000 people living in government shelters. Four million people without power, a million with no water. Experts say the total insured loss could be up to $15bn.

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Stretching into the distance, waves caused by the tsunami pour over the coastline and rush inland swamping all before them. As the seawater passes over the land it mixes with the soil and begins to change colour to a dark brown

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Minimizing the health impact of an earthquake requires preparation, planning, and practice. Far in advance, people should gather emergency supplies, identify and reduce possible hazards in their homes, develop a family communications plan, and practice what to do during and after an earthquake. Detailed information regarding earthquake preparedness is available at the Centers for Disease Control and Prevention’s earthquake preparedness website. Everybody should have emergency supplies readily available in their homes, including a first aid kit, medications, food, water, and a survival kit with essential tools and supplies. Earthquake and Tsunami Preparedness Two women in Urayasu city, Chiba, scramble up a road that was buckled by the force of the quake. Right, a young woman wells up and leans on her friend as the true scale of the disaster that has claimed the lives of hundreds of people becomes apparent.

During An Earthquake: If Indoors:

During An Earthquake: If Indoors DROP to the ground; take COVER by getting under a sturdy table or other piece of furniture; and HOLD ON until the shaking stops. If there isn’t a table or desk near you, cover your face and head with your arms and crouch in an inside corner of the building. Stay away from glass, windows, outside doors and walls, and anything that could fall, such as lighting fixtures or furniture. Stay in bed if you are there when the earthquake strikes. Hold on and protect your head with a pillow, unless you are under a heavy light fixture that could fall. In that case, move to the nearest safe place. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries occur when people inside buildings attempt to move to a different location inside the building or try to leave. Be aware that the electricity may go out or the sprinkler systems or fire alarms may turn on. DO NOT use the elevators.

During An Earthquake: If Outdoors:

During An Earthquake: If Outdoors If outdoors, stay there. Move away from buildings, streetlights, and utility wires. Once in the open, stay there until the shaking stops. The greatest danger exists directly outside buildings, at exits and alongside exterior walls. Ground movement during an earthquake is seldom the direct cause of death or injury. Most earthquake-related casualties result from collapsing walls, flying glass, and falling objects.

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1. Determine if you live, work, play, or transit a coastal low lying area or tsunami evacuation zone. 2. Follow the advice of local emergency and law enforcement authorities. Do not return until authorities say it is safe. 3. Stay away from bodies of water. If you are at the beach or near the ocean, and you feel the earth shake, move immediately inland to higher ground. Do not wait for a tsunami warning to be issued. Stay away from rivers and streams that lead to the ocean due to strong tsunami wave action and currents. 4. Take shelter. If you live in a tsunami evacuation zone and hear that there is a tsunami warning, your family should If you are in school and you hear there is a tsunami warning, you should follow the advice of teachers and other school officials. If you are unable to quickly move inland, high, multi-story, reinforced concrete buildings may provide a safe refuge on the third floor and above. TSUNAMI PREPAREDNESS