Shoemaker Crater

Shoemaker Crater is about 100 kilometres north-east of Wiluna.

This impact crater was formed some time between 500mya and 1.6bya, depending on which source you believe. At that time there were no plants, no animals and no fungi – only stromatolites. A very different planet from today. A 2600 metres wide asteroid hit outback Western Australia at a speed of 65,000 kilometres per hour, creating a 30 kilometres wide impact that was identified as an impact crater in 1974.

It is estimated that the resulting explosion was the equivalent of 784 megatons (about 15 x larger than Tsar Bomba – the largest nuclear bomb ever detonated) and generated an 8.5 magnitude earthquake. The heat and thermal radiation would have destroyed any lifeforms  for a 500 kilometre radius.