Bushfires in Australia

For general information on uncontrolled fires in non-urban areas, see Wildfire.

Looking towards the town Swifts Creek, Victoria, in December 2006 during the Victorian Alpine fires
Intense bushfires can seriously impact the environment, such as here by the Big River, near Anglers Rest, East Gippsland, after the 2003 Victorian fires

Bushfires in Australia are a widespread and regular occurrence that have contributed significantly to shaping the nature of the continent over millions of years. Eastern Australia is one of the most fire-prone regions of the world, and its predominant eucalyptus forests have evolved to thrive on the phenomenon of bushfire.[1] However, the fires can cause significant property damage and loss of both human and animal life. Bushfires have killed approximately 800 people in Australia since 1851,[2] and billions of animals.

The most destructive fires are usually preceded by extreme high temperatures, low relative humidity and strong winds, which combine to create ideal conditions for the rapid spread of fire.[3] Severe fire storms are often named according to the day on which they peaked, including the five most deadly blazes: Black Saturday 2009 in Victoria (173 people killed, 2,000 homes lost); Ash Wednesday 1983 in Victoria and South Australia (75 dead, nearly 1,900 homes); Black Friday 1939 in Victoria (71 dead, 650 houses destroyed), Black Tuesday 1967 in Tasmania (62 people and almost 1,300 homes); and the Gippsland fires and Black Sunday of 1926 in Victoria (60 people killed over a two-month period).[3] Other major conflagrations include the 1851 Black Thursday bushfires, the 2006 December bushfires, the 1974–75 fires that burnt 15% of Australia,[4] and the 2019–20 bushfires.[5] It is estimated that the 2019–2020 bushfires led to the deaths of at least 33 people and over 3 billion animals.[6]

The gradual drying of the Australian continent over the last 6000 years has produced an ecology and environment prone to fire, which has resulted in many specialised adaptations amongst flora and fauna. Some of the country's flora has evolved to rely on bushfires for reproduction. Aboriginal Australians used to use fire to clear grasslands for hunting and to clear tracks through dense vegetation,[7] and European settlers have also had to adapt to using fire to enhance agriculture and forest management since the 19th century.

  1. ^ Vandenbeld, John (1988). "The Making Of The Bush: a portrait of the island continent". Nature of Australia. Episode 3. 55 minutes in. ABC TV. Retrieved 12 February 2020.
  2. ^ Tronson, Mark. "Bushfires – across the nation". Christian Today. Retrieved 5 January 2020.
  3. ^ a b Williams, Liz T. (3 November 2011). "The worst bushfires in Australia's history". Australian Geographic. Retrieved 12 February 2020.
  4. ^ "New South Wales, December 1974 Bushfire – New South Wales". Australian Institute for Disaster Resilience. Government of Australia. Archived from the original on 13 January 2020. Retrieved 13 January 2020. During the summer between 1974 and 1975, Australia experienced its worst bushfire season in 30 years. Approximately 15 per cent of Australia's physical land mass sustained extensive fire damage. This equates to roughly around 117 million ha.
  5. ^ "'Extraordinary' 2019 ends with deadliest day of the worst fire season". The Sydney Morning Herald. 31 December 2019. Retrieved 1 January 2020.
  6. ^ Readfearn, Graham; Morton, Adam (28 July 2020). "Almost 3 billion animals affected by Australian bushfires, report shows - megafires 'one of the worst wildlife disasters in modern history', say scientists". The Guardian.
  7. ^ Ross, Monique; Quince, Annabelle (11 January 2020). "The history of fire in Australia — and how it can help us face the bushfires of the future". Rear Vision. ABC Radio National. Retrieved 13 February 2020.