SubjectsFascinating FactsFactsIP FactoidsPlace-Facts There are no active volcanoes on the Australian mainland. By IP Factly - Jul 28, 2015 0 3 Share on Facebook Tweet on Twitter The flagpole in central Sydney’s Darling Harbour. Image credit: James Cridland, (CC BY 2.0) This is because Australia has no plate boundaries. There are, however, two active volcanoes on islands belonging to Australian territory.