Antinuclear

Australian news, and some related international items

NukeMap – what if Australian cities were hit by a nuclear bomb

What Happens If Australia Is Hit By A Nuclear Bomb? lifehacker, Jackson Ryan | Feb 16, 2020, “….NUKEMAP provides a few different readouts for each map with colour coded rings :

  • The yellow ring is the size of the nuclear fireball
  • The red ring denotes the air blast zone where 20 psi of pressure is felt – enough to damage concrete buildings
  • The green ring denotes the radiation diameter – within this ring, you would receive a 500 rem radiation dose. That’s enough to kill 65-90% of all exposed within 30 days.
  • The grey ring denotes the air blast zone where 5 psi of pressure is felt
  • The orange ring is the thermal radiation zone – if you are within this ring you receive third degree burns that extend through the layers of the skin.

The most recent bomb tested by North Korea was reportedly around 50 kilotons. So if we used that as a base, what would the damage from a 50 kiloton nuclear bomb do to:

Sydney

If a nuclear bomb of this size were to drop over the harbour bridge, then the bridge would be completely engulfed by the nuclear fireball. The amount of pressure emanating from the explosion would destroy Luna Park, most of Kirribilli, including the Prime Minister’s residence and the Opera House. Circular Quay would see an extreme amount of damage and radiation. Darling Harbour wouldn’t be subjected to quite the same amount of instantly fatal pressure, but anyone in the area would still be badly injured.

Melbourne

The size of the nuclear fireball would destroy Melbourne’s CBD and the resulting pressure from the explosion would flatten the land around it. Most of the iconic landmarks in Melbourne’s inner city would be gone.

Brisbane

Brisbane City would be engulfed by the fireball and Suncorp Stadium would take a huge hit. Most of the bridges in the area would need to withstand huge pressures and the thermal radiation causing third degree burns would reach out as far as Fortitude Valley, one of the more busy night strips in Brisbane. …..

Adelaide

Adelaide’s CBD would be mostly non-existent, with the fireball engulfing a large portion and the overpressure extending from North to South Terrace. Rundle Mall would be hit hard and you wouldn’t expect Adelaide Oval to remain standing, either. The thermal radiation would extend out as far as the parade in Norwood and almost entirely cover North Adelaide.

Perth

Owing to its place right next to the Swan River, Perth City may not see the same level of immediate fatalities but the destruction would be extensive. The thermal radiation ring would extend from the centre of the CBD out to the Perth Zoo and as far as Lake Monger. The famous Perth Mint would sadly be caught in the 5psi overpressure zone, a space where most buildings collapse.

Canberra

Parliament House as a target, would be completely decimated by the fireball and the 20psi overpressure would flatten everything as far as National Circuit. The National Library, the National Museum and the National Gallery would also likely crumble under the pressure of the air blast. The Australian War Memorial and the Royal Australian Mint would fall just outside the thermal radiation zone.

Hobart

A direct hit on Hobart’s CBD would see a lot of the blast rip across the River Derwent. The fireball would circle most of the city, while the overpressure blast would extend up Elizabeth Street and out to the Salamanca Market. The Royal Tasmanian Botanical Gardens would receive a huge amount of thermal radiation, which would reach across the Tasman Highway bridge and into Rosny.

Darwin

The size of an atomic bomb blast of this size would take out a lot of Darwin’s waterfront, but the thermal radiation wouldn’t extend all the way across Charles Darwin National Park but, provided it hit the CBD, the overpressure air blast would do incredible damage all the way through the city and across to the Gardens…..

…….. https://www.lifehacker.com.au/2020/02/how-much-damage-would-a-nuclear-bomb-do-to-australian-capital-cities/


 

February 17, 2020 - Posted by | AUSTRALIA - NATIONAL, weapons and war

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