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Australia’s Natural Hazards

Australia’s Natural Hazards. Lesson Objectives. Be able to rank some Australian natural disasters by a variety of criteria. Understand how the impacts of different types of hazards can vary. Work effectively in pairs. Cyclone Tracey

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Australia’s Natural Hazards

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  1. Australia’s Natural Hazards

  2. Lesson Objectives • Be able to rank some Australian natural disasters by a variety of criteria. • Understand how the impacts of different types of hazards can vary. • Work effectively in pairs.

  3. Cyclone Tracey On Christmas Eve 1974, Cyclone Tracy struck the city of Darwin in the Northern Territory. An incredible 195 mm of rain fell in less than nine hours and winds of around 250 km/h flattened the city. Brisbane Floods In January 1974, the weakening Cyclone Wanda brought heavy rainfall to Brisbane and many parts of south-eastern Queensland and northern NSW. The highest recordings were a staggering 1,318mm, and 819mm in the city of Brisbane, flooding one third of the city’s centre The 1967 Tasmanian fires On 7 February 1967, during a time of considerable drought, 264,270 hectares were burnt in southern Tasmania in the space of five hours. Of the 110 fires raging on that fateful morning.The fire destroyed many homes in its path. 1991-95 Drought North-eastern NSW and much of Queensland had the result of the lowest rainfall levels on record. A number of major water reservoirs went dry. There were massive agricultural losses as average rural production fell by over 10 per cent. Rural unemployment rose as people’s farms went under. The Canberra bushfires Horrendous firestorms fanned by high winds hit the nation’s capital on Saturday 18 January 2003. The fires swept through Canberra’s suburbs causing massive destruction. Large scale evacuations took place and a massive relief effort was put in place. 1939 Heatwave While the 1939 ‘Black Friday’bushfires in Victoria killed many people, the accompanying heatwave - which triggered the blazes – killed many more, especially the old and already weak. Ash Wednesday On 16 February 1983 around 180 bushfires raged in both States, the largest of them starting in Victoria. Within a few days, over 520,000 ha had burnt across both States and many buildings and farms were lost Newcastle earthquake was a magnitude 5.6 occurring on 28/12/89, at 10.27am. Even though the earthquake itself was only5 to 6 seconds in length, it collapsed several major buildings and many homes, schools and commercial buildings. 1990 Nyngan FloodOver one million square kilometres of Queensland and New South Wales (and a smaller area of Victoria) were under water. The towns of Nyngan and Charleville were the worst affectedwith main streets well underwater.

  4. HIGHEST NOT QUITE THE HIGHEST THESE 3 ARE RANKED ABOUT MIDDLE NOT QUITE THE LOWEST LOWEST

  5. Tasks • Rank by death toll • Rank by number homeless • Rank by cost

  6. Disasters by Deaths

  7. Disasters by Homeless

  8. Disasters by Cost

  9. Impacts of Natural Disasters

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