Why Australia Is a Continent, Not an Island

Australia is classified as a continent rather than an island due to its massive size and distinct geological foundation. Although entirely surrounded by water, it spans an area comparable to other continental landmasses. Geologically, Australia sits on its own tectonic plate—the Australian Plate—making it a continental landmass. Islands are typically smaller landforms on oceanic crust, while continents are vast, geologically diverse regions. Australia's scale, tectonic independence, and varied geography solidify its continental status.