The Pacific Ocean - A Peaceful Sea
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Palm trees on the Pacific Our blue planet is dominated by the five great seas from which the Pacific is the biggest, deepest and most inhabited. The vast ocean fills the gap between the Americas on the east and Asia and Australia on the west. The massive body of salt water is an astonishing 64 million square miles and it's spread across one-third of the earth's surface. In the northwest section there's an incredible chasm known as the Mariana Trench. At 35,797 feet down, it's the deepest point in the world. The ocean's current name was given by Portuguese explorer Ferdinand Magellan during the Spanish circumnavigation of the globe in 1521. He called it Mar Pacifico or the Peaceful Sea because after sailing around the treacherous Cape Horn, the expedition entered into much calmer waters. The place is hardly peaceful, though. Enclosing the ocean, the volatile land that forms the Pacific Rim is known as the Ring of Fire because of all the volcanos and earthq...