In the film 'The Poseidon Adventure' in which ocean/sea does the ship capsize?

The Poseidon Adventure is a 1972 American disaster film directed by Ronald Neame, produced by Irwin Allen, and based on Paul Gallico's novel of the same name. The film features an ensemble cast, including five Academy Award winners: Gene Hackman, Ernest Borgnine, Jack Albertson, Shelley Winters, and Red Buttons.

The S.S. Poseidon, an ocean liner slated for retirement and scrapping, makes her way across the North Atlantic Ocean and the Mediterranean Sea from New York City to Athens. Despite protests from Captain Harrison who fears for the ship's safety, the representative of her new owners, Mr. Linarcos, insists that he should go at full speed on its final stretch in the Mediterranean Sea towards Athens to save money, preventing him from taking on additional ballast.

That evening, passengers gather in the dining room to celebrate. Harrison is called to the bridge in response to a report of an undersea earthquake. He receives word from the lookout that a huge wave is approaching from the direction of Crete, at 60 knots. He issues a mayday distress signal and commands a "hard left" turn, but it is too late. The wave hits the ship and she capsizes.