The prophecy is worded so that the large island, Greenland, could be counted as the 7th continent.
You do realise that you are trying everything that you can to make things fit the prophecy?
Have you ever wondered why every single Bible 'prophecy' needs to be manipulated in some way, there are no straightforward predictions in the Bible, you have to strangle your brain every time you bring one of these up.
Has it ever occurred to you that the prophecy is wrong?