Weather disturbance
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Weather disturbance






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  • Disaster are hazards that cause destruction or environmental changes. <br /> Natural disaster is a destruction caused by nature to the humanity . It is the effect of natural hazard <br />
  • occurs as water vapor is being evaporated from the ocean surface and condensed into cloud droplets. <br />
  • Firstly, tropical storms are classified by the region in which they originate. <br />
  • Firstly, tropical storms are classified by the region in which they originate. <br />
  • Firstly, tropical storms are classified by the region in which they originate. <br />
  • Hurricane develops in the Western Atlantic Ocean where the water temperature is colder. <br /> Typhoons develop in the Pacific Ocean where the water is warmer.  <br /> Hurricanes develop in the Western Atlantic Ocean during summer. <br /> Tropical storm develops where the water is warm and the place is humid. That is why it is said that typhoons are stronger than hurricanes. <br /> Hurricanes occur during October in the Western Atlantic Ocean (cold region) <br /> Typhoons appear during the months of July to November in the Northern Pacific Ocean (warm and humid region). <br />
  • Coriolis force - an apparent force that as a result of the earth’s rotation deflects moving objects to the right in the northern hemisphere and to the left in the southern hemisphere. <br />
  • Tornado damage is intense and targeted <br /> Cyclone damage is widespread, and the exposure to the elements is longer. <br /> The tornado cannot encourage the development of the cyclone. <br /> The cyclone can encourage the development of the tornado once landfall is achieved. <br />
  • Tsunamis can travel at speeds up to 500 miles, or 805 km per hour. <br /> Tsunamis start out the same speed and height of a regular wave, but then the wave slows down and gains height. <br /> The top of the wave moves faster than the bottom of the wave. <br /> Tsunamis usually happen in series of waves. <br />
  • When these events happen under water, huge amount of energy is released. As a result enormous waves are created. <br />
  • When these events happen under water, huge amount of energy is released. As a result enormous waves are created. <br />
  • A tsunami in the Pacific Ocean was produced by the 1868 Arica Earthquake, recorded in Hawaii, New Zealand and Japan. <br /> Although the tsunami was generated across the Pacific, most of the associated damage occurred in some parts of southern Peru. <br /> The place is now known as “Chile”. <br /> Almost complete destruction of the area was caused by the disaster. <br /> The estimated number of deaths is 25,674. <br />
  • In year 1896, an Earthquake with a magnitude of 8.5 attacked Japan, Sanriku. <br /> 27,122 people died and 9,247 were injured. <br /> Japanese lost their lives due to the most devastating tsunami in Japanese history. Several houses were swept away. <br /> The tsunami attained a height of 25 meters (about 80 feet) and was found across the Pacific.    <br />
  • The Earthquake and the resulting Tsunami was the largest in Japanese history. <br /> More than 5,000 casualties in 1707. <br /> The magnitude of the Earthquake was 8.6 ML. the average height of the tsunami was from 7.7m upto 10m in places. <br /> The disaster affected the main areas of Tokaido and Nankaido. <br /> There were 29,000 destroyed houses with around 30,000 estimated numbers of deaths. <br />
  • 1883 <br /> 40m high tsunami hits the sea of Krakatau, Indonesia. <br /> It was caused as a result of the volcanic eruption of volcano Krakatoa. <br /> The weak points in the Earth’s crust led to the formation of volcanoes, the same thing happens in case of an Earthquake. <br /> Many People were paralyzed with fear as they got carried away with the huge wave of tsunami. <br /> Around 36,500 people were found dead. <br /> It was the first modern catastrophe. <br />
  • Taiwan was hit by Earthquake in 1782 that triggered a deadly tsunami in the country’s South China Sea. <br /> More than 40,000 people died from the disaster, half people were injured and millions were left homeless. <br /> The giant waves deluged rural areas and cities. It was one of the largest attacks of tsunami in history. <br />
  • The 2011 earthquake off the Pacific coast of Tōhoku <br /> It was the most powerful known earthquake ever to have hit Japan <br /> 9.0 magnitude earthquake struck of the eastern coast of Japan, tsunami killed 27,000+ <br /> The earthquake triggered powerful tsunami waves that reached heights of up to 40.5 metres (133 ft) in Miyako in Tōhoku&apos;s <br /> Japanese National Police Agency report confirmed 15,883 deaths, 6,143 injured, and 2,681 people missing <br /> across twenty prefectures, as well as 129,225 buildings totally collapsed with a further 254,204 buildings &apos;half collapsed‘ <br /> another 691,766 buildings partially damaged <br />
  • In 1908, a very dangerous tsunami attacked the Sicilian city of Messina. <br /> As per the new study it is revealed that it was not an earthquake that caused the tsunami; <br /> it was an underwater landslide- a recurrent and impulsive phenomenon. <br /> The calamity created a distressed and shocked environment. <br /> Many people were homeless and scarcity is all over the place. <br /> The maximum death toll is 123,000. <br />
  • An earthquake occurred in Portugal, Ireland, Morocco and the United Kingdom <br /> 1st of November 1755. <br /> The day was a Catholic holiday. <br /> Fires and tsunami followed the earthquake and totally destroyed all the neighboring areas of Lisbon. <br /> The estimated magnitude of this earthquake was 8.5-9.0 as indicated by moment magnitude scale, its epicenter was in the Atlantic Ocean. <br /> The fact that makes this earthquake one of the deadliest is the estimated number of deaths in Lisbon alone was between 10,000 and 100,000 people <br />
  • Killer waves were produced by the immense eruption of the Thera volcano in the Aegean Sea. <br /> This thing happened more than 3,000 years ago in year 1410 B.C.E. <br /> Scientists researched about this incident and suggested that giant tsunamis from the shattering eruption hit coastal areas <br /> The waves raced thousand miles across the Eastern Mediterranean littoral. <br /> At that time, the region was habitat to growing civilizations in Turkey, Egypt, Phoenicia, Cyprus and Crete. <br /> Today the remains of this eruption compose up the Greek Archipelago of Santorini. <br />
  • This is the most deadly hit of tsunami. <br /> In year 2004 tsunami hit the Indian Ocean. <br /> Firstly two major earthquakes – one with a magnitude of 8.6 and the other one of 8.3, hit Sumatra then a gaze of tsunami is confirmed. <br /> People are informed about it. This caused panic among people, as a result of this people fled buildings and run for high ground. <br /> The tsunami killed around 350,000 people. These figures are estimated figures. <br /> So that some precautions can be taken before the attack and they can get prepared for the attack. <br />
  • caused destruction on the island of Mindanao - the southernmost and largest of the Philippine Islands. <br />
  • 78 people died <br /> injured 430 <br /> damaged or destroyed 7,566 houses in 13 out of 15 municipalities, <br /> damaged roads <br /> destroyed or damaged 24 bridges <br /> sunk numerous fishing boats. <br />

Weather disturbance Weather disturbance Presentation Transcript

  •      Weather Disturbances Typhoon/Hurricane Tropical Cyclones Tornado Tsunami
  •  Typhoon/Hurricane  Tropical Cyclones  Tornado
  • - A large heat engine, where great amounts of heat are being produced from the process of latent heat of condensation.
  • - - Both are names of tropical storms and most of their characteristics are the same. They have wind speeds that are more than 74 mph, and are accompanied by hail, strong winds, storm surges and rain. 
  •  Hurricanes damage more land areas than Typhoons, which cause damage to countries’ coastlines.  Typhoons are said to be stronger than Hurricanes because it develops where water is warm.  Hurricanes move both clockwise and counter clockwise.  Typhoons clockwise.   move
  •  Pre-existing disturbance  Warm ocean water  Low atmospheric stability  Sufficient Coriolis force  Low vertical wind shear  Upper atmosphere divergence
  •  Water temperatures of at least 26.5 °C (79.7 °F)   Rapid cooling with height  High humidity  Low amounts of wind shear   A need to form more than 555 km (345 mi) or 5 degrees of latitude away from the equator  pre-existing system of disturbed weather
  •  Around 19 tropical cyclones or storms  The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) releases tropical cyclone warnings in the form of Public Storm Warning Signals.
  • - Torrential rain that can cause flooding - Extremely strong winds that carry debris that can be lethal - Damage buildings and property - Destroy crops - Capsize boats at sea - Deaths due to drowning - Infrastructure destroyed
  • Los Baños, Laguna – Aug 14, 2008 Mactan, Cebu - August 8, 2008 Sultan Kudarat – June 12, 2008 Lingayen, Pangasinan – June 5, 2008 Southern Leyte – May 21, 2008
  •   Land encourages the development of a tornado, while it destroys the cyclone’s formation. The time frame from the birth of a tornado until it dies out, is generally measured in minutes.  Cyclones develop and faster over the oceans.  The cyclone has a longer life span. The time frame from the birth to the death of a cyclone, is measured in hours and days.
  •  loss of Life  Property Damage  Effects on Nature
  •  Tsunami are ocean waves, that can reach the height of 100 feet, and crash onto land.  Japanese word that means “harbor wave”.  80% of all tsunamis take place in the Ring of Fire in the Pacific Ocean.
  •  Tsunamis are formed as a result of powerful under water earthquakes, volcanic eruption, or a landslide  Some parts of the Ocean experience frequent earthquakes because of the movement of the continental plates.
  •  In deep open sea, tsunamis move at a speed of 600 mph or more.  When tsunami arrives at the shore, it usually decreases its speed to about 45 mph/hour.
  •  August 16, 1976  Cotabato Trench  Maximum height of 4.5 meters (14-15 feet)
  •  15 November 1994  Earthquake with magnitude of 7.1  Baco, Mindoro
  •  Tsunami may affect people mentally, emotionally, and financially.  People are left homeless and careless due to the flooding and other destructions.  Lost of lives
  •  Destroy the crops and flood the city.  A tsunami can cause plenty of damage by crushing buildings, sweeping people of their feet, and dirtying the pipes, consequently spreading disease.
  • References:    e/nature/difference-between-hurricaneand-typhoon/