At 165,250,000 square kilometers (63,800,000 square miles) in area (as defined with an Antarctic southern border), this largest division of the World Oceanâand, in turn, the hydrosphereâcovers about 46% of Earth's water surface and about 32% of its total surface area, making it larger than all of Earth's land area combined (148,000,000 square kilometers). The Southern Ocean includes water below 60 degrees south of the Equator.  Sailing around and east of the Moluccas, between 1525 and 1527, Portuguese expeditions discovered the Caroline Islands, the Aru Islands, and Papua New Guinea. The Pacific Ocean meets the Atlantic Ocean south of South America at Cape Horn .  The ever-growing Great Pacific garbage patch between California and Japan is three times the size of France. On a worldwide scale, May is the least active month, while September is the most active month. The Mesopotamians were the first in the history of astronomy to keep records of the observed seven moving objects in the heavens â the seven classical planets / Seven Heavens â and they made this connection to their seven seas. "Finding the Pacific world. "Problems of Pacific history.  Challenger Deep in the Mariana Trench, located in the western north Pacific, is the deepest point in the world, reaching a depth of 10,928 meters (35,853 feet). Pacific Ocean is the largest among all the five oceans of the world .  The andesite line follows the western edge of the islands off California and passes south of the Aleutian arc, along the eastern edge of the Kamchatka Peninsula, the Kuril Islands, Japan, the Mariana Islands, the Solomon Islands, and New Zealand's North Island.. The names of the earth's five oceans are the Atlantic, the Pacific, the Arctic, the Indian and the Southern (or Antarctic) Oceans. For information about seas in general, see ocean List of seas, by ocean Pacific Ocean. For example, catches in the rich fishing grounds of the Okhotsk Sea off the Russian coast have been reduced by at least half since the 1990s as a result of overfishing. The Pacific Ocean contains several long seamount chains, formed by hotspot volcanism. Spanning an area of 168,723,000 square km, the Pacific Ocean accounts for â¦ The highest point of the Indian Ocean uniformly rests right at sea level, rather than above or below it as a result of geographical influences. About 3000 BC, the Austronesian peoples on the island of Taiwan mastered the art of long-distance canoe travel and spread themselves and their languages south to the Philippines, Indonesia, and maritime Southeast Asia; west towards Madagascar; southeast towards New Guinea and Melanesia (intermarrying with native Papuans); and east to the islands of Micronesia, Oceania and Polynesia.. , From 1946 to 1958, Marshall Islands served as the Pacific Proving Grounds for the United States and was the site of 67 nuclear tests on various atolls. Significant contributions to oceanographic knowledge were made by the voyages of HMS Beagle in the 1830s, with Charles Darwin aboard; HMS Challenger during the 1870s; the USS Tuscarora (1873â76); and the German Gazelle (1874â76). The Pacific Ocean is the largest ocean covering more than 30% of the Earth.  Overfishing has become a serious problem in some areas. In the tropical western Pacific, the monsoon and the related wet season during the summer months contrast with dry winds in the winter which blow over the ocean from the Asian landmass. How many oceans are there on earth how big is the pacific ocean earth s oceans reading key world s biggest oceans seas pacific What Is The Largest Ocean Basin On EarthTop 10 World S Largest Oceans And SeasLargest Oceans And Seas World Top TenTop 10 World S Largest Oceans And SeasThe World S Largest â¦  Tsunamis, caused by underwater earthquakes, have devastated many islands and in some cases destroyed entire towns. Here basaltic lavas gently flow out of rifts to build huge dome-shaped volcanic mountains whose eroded summits form island arcs, chains, and clusters.  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