20 Facts About Pacific Ocean

Pacific Ocean is the largest and deepest of Earth's five oceanic divisions.

Challenger Deep in the Mariana Trench, located in the western north Pacific Ocean, is the deepest point in the world, reaching a depth of 10, 928 meters.

The Pacific Ocean contains the deepest point in the Southern Hemisphere, the Horizon Deep in the Tonga Trench, at 10, 823 meters.

Western Pacific Ocean has many major marginal seas, including but not limited to the South China Sea, the East China Sea, the Sea of Japan, the Sea of Okhotsk, the Philippine Sea, the Coral Sea, Java Sea and the Tasman Sea.

Pacific Ocean called it, which in both Portuguese and Spanish means 'peaceful sea'.

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From, probably, the Bismarck Archipelago they crossed the western Pacific Ocean to reach the Marianas Islands by 1500 BCE, as well as Palau and Yap by 1000 BCE.

Spain sent expeditions to the Pacific Ocean Northwest, reaching Vancouver Island in southern Canada, and Alaska.

The lands around the Pacific Ocean Rim are full of volcanoes and often affected by earthquakes.

The islands entirely within the Pacific Ocean can be divided into three main groups known as Micronesia, Melanesia and Polynesia.

Islands in the Pacific Ocean are of four basic types: continental islands, high islands, coral reefs and uplifted coral platforms.

Coral reefs of the South Pacific are low-lying structures that have built up on basaltic lava flows under the ocean's surface.

The motion of Pacific Ocean waters is generally clockwise in the Northern Hemisphere and counter-clockwise in the Southern Hemisphere.

The South Equatorial Current, flowing west along the equator, swings southward east of New Guinea, turns east at about 50°S, and joins the main westerly circulation of the South Pacific Ocean, which includes the Earth-circling Antarctic Circumpolar Current.

The trade winds in the southern and eastern Pacific are remarkably steady while conditions in the North Pacific are far more varied with, for example, cold winter temperatures on the east coast of Russia contrasting with the milder weather off British Columbia during the winter months due to the preferred flow of ocean currents.

Pacific Ocean is the only ocean which is mostly bounded by subduction zones.

The oldest Pacific Ocean floor is only around 180 Ma old, with older crust subducted by now.

Pacific Ocean contains several long seamount chains, formed by hotspot volcanism.

From 1946 to 1958, Marshall Islands served as the Pacific Ocean Proving Grounds for the United States and was the site of 67 nuclear tests on various atolls.

Several nuclear weapons were lost in the Pacific Ocean, including one-megaton bomb lost during the 1965 Philippine Sea A-4 incident.

Apart from dumping, leakage of tritium into the Pacific Ocean was estimated to be between 20 and 40 trillion Bqs from 2011 to 2013, according to the Fukushima plant.