While they do happen I can’t say i can remember an earthquake happening in western Australia. As the continent moves north all the action seems to happen at the edges of the quake but today there was a 5.1 quake right about the center of the plate at the western edge of Australia.
It was so far from anywhere that no damage was caused and for the people who may have been close it was probably a wild moment as it was fairly close to the surface. Being where it was this is just the plate flexing and doesn’t mean anything. Now if there are any more quakes in the area that could mean something but I am not holding my breath while waiting.