"I have a theory that after Charles Widmore bought the first mate's diary from the Black Rock at the auction, he found out that the first mate had written some fantastic story about how a tropical island suddenly appeared underneath the Black Rock (which would explain how it got shipwrecked inland from the island's coast) and lifted it up out of the water. This could have happened when one of the original inhabitants of the island (Richard Alpert perhaps?) had moved the island many centuries prior. Alpert never seems to age, and seems to be there at many crucial points in Locke's life, determining him to be "special" and suited for island leadership."

"I have a theory that after Charles Widmore bought the first mate's diary from the Black Rock at the auction, he found out that the first mate had written some fantastic story about how a tropical island suddenly appeared underneath the Black Rock (which would explain how it got shipwrecked inland from the island's coast) and lifted it up out of the water. This could have happened when one of the original inhabitants of the island (Richard Alpert perhaps?) had moved the island many centuries prior. Alpert never seems to age, and seems to be there at many crucial points in Locke's life, determining him to be "special" and suited for island leadership."

"Excellent Theroy!!! But could not have been Richard Alpert or anyone else on the island because the cost of moving the Island is they have to leave it and never come back. So I will suggest that it may have been Tovaro Hanso or possible a Widmore that moved the island, since these surnames were said/therorized to have been on the Black Rock, but are not now on the Island. "