The Stone Raft.

An inexplicable crack in the Pyrenees Mountains provokes excitement and scientific curiosity. As the geological fracture deepens and widens, the European community begins to disassociate itself from the calamity, and panic ensues among tourists and residents attempting to escape. When Spain and Portugal physically separate from the continent, the detached Iberian peninsula aimlessly floats off to sea, becoming home to a group of god-like humans.