The remnant of Java the Great Australians who survived 1530 resettled in the northern countries such as Pakistan, Afghanistan and Russia. Many of them via Arabia and India. This is why cartographers trying to intergrate pre and post 1530 maps and information had great difficulty. This is why many accounts such as Marco Polo were dismissed as fictions by many or that he was mistaken in locations as they were found to just be in the Indian Ocean where today there are no lands only water. However using google earth one sees that there was land in those areas which sunk at some time in the past.
Australia was known as Java the Great and the land of the Kerguelen Plateau (now under the Sea) was known as Java the Less. Modern day Java was known as Sunda (before overhalf of it went under the Sea and was considered part of Java the Great (Australia). Antartica was also known as Sunda.