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82-568: The Kashima Rinkai Railway ( 鹿島臨海鉄道 , Kashima Rinkai Tetsudō , "Kashima Seaside Railway") is a railway company in Ibaraki Prefecture , Japan. The third sector company is abbreviated as KRT . It was founded in 1969 to transport freight to and from the coastal industrial area of Kashima . The company was founded on 1 April 1969. On 12 November 1970, the company opened the freight-only line between Kita-Kashima (present-day Kashima Soccer Stadium) and Okunoyahama. On 14 March 1985,

164-542: Is 4,280 m (14,040 ft; 2,340 fathoms), putting the total water volume at roughly 710,000,000 km (170,000,000 cu mi). Due to the effects of plate tectonics , the Pacific Ocean is currently shrinking by roughly 2.5 cm (1 in) per year on three sides, roughly averaging 0.52 km (0.20 sq mi) a year. By contrast, the Atlantic Ocean is increasing in size. Along

246-864: Is a botanical garden in Mito. Park Ibaraki Nature Museum in Bandō . There are castle ruins in many cities, including Mito Castle , Yūki Castle, Kasama Castle , Tsuchiura Castle , Oda Castle . Hitachi Fūryūmono , a puppet float theater festival, Intangible Cultural Heritage of Humanity. Makabe Hina Doll Festival - Hinamatsuri - (Sakuragawa City). Yūki-tsumugi (silk weaving technique) Intangible Cultural Heritage of Humanity, Kasama ware , Makabe Stone Lamp, Kagami Crystal Glass Factory, old glass factory in Ryūgasaki City. The sports teams listed below are based in Ibaraki. [REDACTED] Ibaraki Prefecture with

328-408: Is an important center for the martial art of Aikido . Ibaraki Prefecture was previously known as Hitachi Province . In 1871, the name of the province became Ibaraki, and in 1875 it became its current size, by annexing some districts belonging to the extinct Shimōsa Province . In Japanese Paleolithic , humans are believed to have started living in the present-day prefecture area before and after

410-491: Is not known with any certainty what level of maritime technology was used by these groups – the presumption is that they used large bamboo rafts which may have been equipped with some sort of sail. The reduction in favourable winds for a crossing to Sahul after 58,000 B.P. fits with the dating of the settlement of Australia, with no later migrations in the prehistoric period. The seafaring abilities of pre-Austronesian residents of Island South-east Asia are confirmed by

492-416: Is part of Kantō Plain . As of 1 April 2012 , 15% of the total land area of the prefecture was designated as Natural Parks , namely Suigo-Tsukuba Quasi-National Park , and nine Prefectural Natural Parks. Also, Ibaraki has one Prefectural Geopark. The Suigo-Tsukuba Quasi-National Park, also includes the northeast area of Chiba Prefecture. The northern third of the prefecture is mountainous and in

574-697: The Americas , although evidence for this remains inconclusive. The first contact of European navigators with the western edge of the Pacific Ocean was made by the Portuguese expeditions of António de Abreu and Francisco Serrão , via the Lesser Sunda Islands , to the Maluku Islands , in 1512, and with Jorge Álvares 's expedition to southern China in 1513, both ordered by Afonso de Albuquerque from Malacca . The eastern side of

656-575: The Bering Sea in the Arctic to the northern extent of the circumpolar Southern Ocean at 60°S (older definitions extend it to Antarctica 's Ross Sea ), the Pacific reaches its greatest east–west width at about 5°N latitude , where it stretches approximately 19,800 km (12,300 mi) from Indonesia to the coast of Colombia  – halfway around the world, and more than five times

738-829: The International Date Line into the East Pacific and the West Pacific , which allows it to be further divided into four quadrants, namely the Northeast Pacific off the coasts of North America , the Southeast Pacific off South America , Northwest Pacific off Far Eastern / Pacific Asia , and the Southwest Pacific around Oceania . The Pacific Ocean's mean depth is 4,000 meters (13,000 feet). Challenger Deep in

820-830: The Mariana Trench , located in the northwestern Pacific, is the deepest known point in the world, reaching a depth of 10,928 meters (35,853 feet). The Pacific also contains the deepest point in the Southern Hemisphere , the Horizon Deep in the Tonga Trench , at 10,823 meters (35,509 feet). The third deepest point on Earth, the Sirena Deep , is also located in the Mariana Trench. The western Pacific has many major marginal seas , including

902-626: The Nishiibaraki region. Ibaraki is famous for the martial art of Aikido founded by Morihei Ueshiba , also known as Osensei . Ueshiba spent the latter part of his life in the town of Iwama , now part of Kasama , and the Aiki Shrine and dojo he created still remain. Kasama is famous for Shinto ( Kasama Inari Shrine ), Ibaraki Ceramic Art Museum, house museum of the calligrapher and ceramist Kitaōji Rosanjin , Kasama Nichidō Museum of Art , residence of Morihei Ueshiba , founder of

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984-830: The Oda Castle his field headquarters for over a year, and wrote the Jinnō Shōtōki (Chronicles of the Authentic Lineages of the Divine Emperors), while he was at castle. During the Edo period , one of the three houses or clans originating from Tokugawa Ieyasu (Gosanke 御 三家, three houses), settled in the Mito Domain , the clan is known as the Mito Tokugawa family or simply the Mito clan. Mito Domain,

1066-601: The Pacific War ; however, by the end of that war, Japan was defeated and the U.S. Pacific Fleet was the virtual master of the ocean. The Japanese-ruled Northern Mariana Islands came under the control of the United States. Since the end of World War II, many former colonies in the Pacific have become independent states . The Pacific separates Asia and Australia from the Americas. It may be further subdivided by

1148-631: The Philippine Sea , South China Sea , East China Sea , Sea of Japan , Sea of Okhotsk , Bering Sea , Gulf of Alaska , Gulf of California , Mar de Grau , Tasman Sea , and the Coral Sea . In the early 16th century , Spanish explorer Vasco Núñez de Balboa crossed the Isthmus of Panama in 1513 and sighted the great "Southern Sea" which he named Mar del Sur (in Spanish). Afterwards,

1230-715: The Southern Hemisphere . The North Equatorial Current , driven westward along latitude 15°N by the trade winds , turns north near the Philippines to become the warm Japan or Kuroshio Current . Turning eastward at about 45°N , the Kuroshio forks and some water moves northward as the Aleutian Current , while the rest turns southward to rejoin the North Equatorial Current. The Aleutian Current branches as it approaches North America and forms

1312-685: The Strait of Magellan to the Philippines , the explorer indeed found the ocean peaceful; however, the Pacific is not always peaceful. Many tropical storms batter the islands of the Pacific. The lands around the Pacific Rim are full of volcanoes and often affected by earthquakes . Tsunamis , caused by underwater earthquakes, have devastated many islands and in some cases destroyed entire towns. The Martin Waldseemüller map of 1507

1394-786: The Tone , Naka (Ibaraki) , and Kuji rivers, all of which flow into the Pacific Ocean . Before the seventeenth century, the lower reaches of the Tone were different from its current layout, and the Tone ran south and emptied into Tokyo Bay , and tributaries such as the Watarase and Kinu rivers had independent water systems. The main tributaries of the Tone River basin are the Kinu River and Kokai River, which flow from north to south in

1476-800: The Water Hemisphere and the Western Hemisphere , as well as the oceanic pole of inaccessibility , are in the Pacific Ocean. Ocean circulation (caused by the Coriolis effect ) subdivides it into two largely independent volumes of water that meet at the equator , the North Pacific Ocean and the South Pacific Ocean (or more loosely the South Seas ). The Pacific Ocean can also be informally divided by

1558-750: The Western Hemisphere . The Southern Pacific Ocean harbors the Southeast Indian Ridge crossing from south of Australia turning into the Pacific-Antarctic Ridge (north of the South Pole ) and merges with another ridge (south of South America) to form the East Pacific Rise which also connects with another ridge (south of North America) which overlooks the Juan de Fuca Ridge . For most of Magellan's voyage from

1640-583: The crab claw sail ) – it is likely that the progressive development of these technologies were related to the later steps of settlement into Near and Remote Oceania. Starting at around 2200 BCE, Austronesians sailed southwards to settle the Philippines . From, probably, the Bismarck Archipelago they crossed the western Pacific to reach the Marianas Islands by 1500 BCE, as well as Palau and Yap by 1000 BCE. They were

1722-571: The "k" sound in Ibaraki dialect. Ibaraki is twinned with: 36°14′N 140°17′E  /  36.233°N 140.283°E  / 36.233; 140.283 Pacific Ocean Main five oceans division: Further subdivision: The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions . It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica ) in

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1804-908: The Atlantic, the Strait of Magellan was at times patrolled by fleets sent to prevent the entrance of non-Spanish ships. On the western side of the Pacific Ocean the Dutch threatened the Spanish Philippines . The 18th century marked the beginning of major exploration by the Russians in Alaska and the Aleutian Islands , such as the First Kamchatka expedition and the Great Northern Expedition , led by

1886-533: The Atlantic. The andesite line is the most significant regional distinction in the Pacific. A petrologic boundary, it separates the deeper, mafic igneous rock of the Central Pacific Basin from the partially submerged continental areas of felsic igneous rock on its margins. The andesite line follows the western edge of the islands off California and passes south of the Aleutian arc , along

1968-735: The Chilean coast, the South Equatorial Current divides; one branch flows around Cape Horn and the other turns north to form the Peru or Humboldt Current . The climate patterns of the Northern and Southern Hemispheres generally mirror each other. 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

2050-844: The Danish-born Russian navy officer Vitus Bering . Spain also sent expeditions to the Pacific Northwest , reaching Vancouver Island in southern Canada, and Alaska. The French explored and colonized Polynesia , and the British made three voyages with James Cook to the South Pacific and Australia, Hawaii , and the North American Pacific Northwest . In 1768, Pierre-Antoine Véron , a young astronomer accompanying Louis Antoine de Bougainville on his voyage of exploration, established

2132-571: The Edo River, is part of the southern border of Ibaraki Prefecture with Chiba Prefecture, and the Watarase River , Tone River, Gongendō River, and Naka River (Saitama) in the southwestern border of Ibaraki with Saitama Prefecture. The Watarase River has become a small boundary of the southern border between Ibaraki and Tochigi prefectures. From ancient times to the beginning of the Edo period,

2214-544: The Ibaraki Prefecture. Ibaraki Prefecture is the northeastern part of the Kantō region , stretching between Tochigi Prefecture and the Pacific Ocean and bounded on the north and south by Fukushima Prefecture and Chiba Prefecture . It also has a border on the southwest with Saitama Prefecture . The northernmost part of the prefecture is mountainous, but most of the prefecture is a flat plain with many lakes and

2296-679: The Moluccas, between 1525 and 1527, Portuguese expeditions encountered the Caroline Islands , the Aru Islands , and Papua New Guinea . In 1542–43 the Portuguese also reached Japan. In 1564, five Spanish ships carrying 379 soldiers crossed the ocean from Mexico led by Miguel López de Legazpi , and colonized the Philippines and Mariana Islands . For the remainder of the 16th century, Spain maintained military and mercantile control, with ships sailing from Mexico and Peru across

2378-802: The Pacific Ocean to the Philippines via Guam , and establishing the Spanish East Indies . The Manila galleons operated for two and a half centuries, linking Manila and Acapulco , in one of the longest trade routes in history. Spanish expeditions also arrived at Tuvalu , the Marquesas , the Cook Islands , the Solomon Islands , Vanuatu , the Marshalls and the Admiralty Islands in the South Pacific. Later, in

2460-399: The Pacific Ocean's irregular western margins lie many seas, the largest of which are the Celebes Sea , Coral Sea , East China Sea (East Sea), Philippine Sea , Sea of Japan , South China Sea (South Sea), Sulu Sea , Tasman Sea , and Yellow Sea (West Sea of Korea). The Indonesian Seaway (including the Strait of Malacca and Torres Strait ) joins the Pacific and the Indian Ocean to

2542-408: The Pacific Ocean, Lake Kasumigaura, other lagoons and rivers, various species of fish are obtained. The Hitachigyū cattle (常 陸 牛 - ひたちぎゅう - Hitachi-gyū, Hitachi-ushi), which is a prefectural bovine breed, is noteworthy in livestock. The name comes from the kanji 常 陸 (Hitachi), the name of the ancient Hitachi Province and 牛 (ushi or gyū, beef). Background. In 1833 Tokugawa Nariaki (徳川 斉昭) established

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2624-413: The Pacific in prehistoric times. Modern humans first reached the western Pacific in the Paleolithic , at around 60,000 to 70,000 years ago. Originating from a southern coastal human migration out of Africa, they reached East Asia , Mainland Southeast Asia , the Philippines, New Guinea , and then Australia by making the sea crossing of at least 80 kilometres (50 mi) between Sundaland and Sahul . It

2706-402: The Pacific in recorded history. They were part of a Spanish expedition to the Spice Islands that would eventually result in the first world circumnavigation . Magellan called the ocean Pacífico (or "Pacific" meaning, "peaceful") because, after sailing through the stormy seas off Cape Horn , the expedition found calm waters. The ocean was often called the Sea of Magellan in his honor until

2788-540: The Philippines already in 7000 BCE. Additional earlier migrations into Insular Southeast Asia, associated with Austroasiatic-speakers from Mainland Southeast Asia, are estimated to have taken place already in 15000 BCE. At around 1300 to 1200 BCE, a branch of the Austronesian migrations known as the Lapita culture reached the Bismarck Archipelago , the Solomon Islands , Vanuatu , Fiji , and New Caledonia . From there, they settled Tonga and Samoa by 900 to 800 BCE. Some also back-migrated northwards in 200 BCE to settle

2870-410: The Tokyo metropolitan area, giving it a high reputation as an industrial base. The prefecture is also home to Tsukuba , Japan's most extensive research and academic city, and the birthplace of Hitachi , Ltd. With extensive flat lands, abundant water, and suitable climate, Ibaraki is among the prefectures with the highest agricultural production in Japan. It plays an important role in supplying food to

2952-401: The Tokyo metropolitan area. Its main products include melons, pears, peppers, various varieties of rice and sugar cane, as well as flowers and ornamental plants. It also supplies other food crops to the rest of the country. As of March 2011, the prefecture produced 25% of Japan's bell peppers and Chinese cabbage. It is one of the prefectures with the highest fish production in the country; in

3034-528: The United States. 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 (1873–76); and the German Gazelle (1874–76). In Oceania, France obtained a leading position as imperial power after making Tahiti and New Caledonia protectorates in 1842 and 1853, respectively. After navy visits to Easter Island in 1875 and 1887, Chilean navy officer Policarpo Toro negotiated

3116-416: The andesite line and include New Guinea, the islands of New Zealand, and the Philippines. Some of these islands are structurally associated with nearby continents. High islands are of volcanic origin, and many contain active volcanoes. Among these are Bougainville , Hawaii, and the Solomon Islands. The coral reefs of the South Pacific are low-lying structures that have built up on basaltic lava flows under

3198-408: The andesite line. Within the closed loop of the andesite line are most of the deep troughs, submerged volcanic mountains, and oceanic volcanic islands that characterize the Pacific basin. Here basaltic lavas gently flow out of rifts to build huge dome-shaped volcanic mountains whose eroded summits form island arcs, chains, and clusters. Outside the andesite line, volcanism is of the explosive type, and

3280-409: The arctic, icing from October to May can present a hazard for shipping while persistent fog occurs from June to December. A climatological low in the Gulf of Alaska keeps the southern coast wet and mild during the winter months. The Westerlies and associated jet stream within the Mid-Latitudes can be particularly strong, especially in the Southern Hemisphere, due to the temperature difference between

3362-421: The base of a counter-clockwise circulation in the Bering Sea . Its southern arm becomes the chilled slow, south-flowing California Current . 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, which includes the Earth-circling Antarctic Circumpolar Current . As it approaches

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3444-421: The breeding of black cattle in the present Migawa-chō (見川 町) of the city of Mito. Originally it remained mainly in the northern part of the prefecture, but later it spread throughout the prefecture. Ibaraki's population is decreasing more rapidly than any other prefecture. Ibaraki is known for nattō , or fermented soybeans, in Mito , watermelons in Kyōwa (recently merged into Chikusei ), and chestnuts in

3526-413: The center is the Tsukuba Mountains (筑波 山地). Its main mountains are: mount Yamizo with an elevation of 1022 m on the border with Fukushima and Tochigi prefectures ( tripoint ), mount Takasasa with 922 m, mount Tsukuba with two peaks Nyotai-San at 877 m and Nantai-San at 871 m, mount Osho at 804 m, mount Hanazono at 798 m, and mount Kaba at 709 m. The main rivers that flow through the prefecture include

3608-446: The company opened the passenger line from Mito to Kashima Soccer Stadium. This article about a Japanese railway corporation or company-related topic is a stub . You can help Misplaced Pages by expanding it . Ibaraki Prefecture Mito , the capital, is the largest city in Ibaraki Prefecture. Other major cities include Tsukuba , Hitachi , and Hitachinaka . Ibaraki Prefecture is located on Japan's eastern Pacific coast to

3690-403: The deposition of the volcanic ash layer from the Aira Caldera about 24,000 years ago. At the bottom of this layer are local tools of polished stone and burnt pebbles. During the Asuka period the provinces of Hitachi and Fusa were created. Later Fusa was divided, among them, the Shimōsa Province. At the beginning of the Muromachi period , in the 14th century, Kitabatake Chikafusa made of

3772-408: The diameter of the Moon. Its geographic center is in eastern Kiribati south of Kiritimati , just west from Starbuck Island at 4°58′S 158°45′W  /  4.97°S 158.75°W  / -4.97; -158.75 . The lowest known point on Earth – the Mariana Trench  – lies 10,911 m (35,797  ft ; 5,966 fathoms ) below sea level. Its average depth

3854-402: The difference between temperatures aloft and sea surface temperatures is the greatest; however, each particular basin has its own seasonal patterns. On a worldwide scale, May is the least active month, while September is the most active month. November is the only month in which all the tropical cyclone basins are active. The Pacific hosts the two most active tropical cyclone basins , which are

3936-434: The east and the islands of Kiribati in the southeast. Melanesia, to the southwest, includes New Guinea , the world's second largest island after Greenland and by far the largest of the Pacific islands. The other main Melanesian groups from north to south are the Bismarck Archipelago , the Solomon Islands , Santa Cruz , Vanuatu , Fiji and New Caledonia . The largest area, Polynesia , stretching from Hawaii in

4018-423: 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 . In the tropical and subtropical Pacific, the El Niño Southern Oscillation (ENSO) affects weather conditions. To determine the phase of ENSO, the most recent three-month sea surface temperature average for the area approximately 3,000 km (1,900 mi) to

4100-403: The eastern edge of the Kamchatka Peninsula , the Kuril Islands , Japan, the Mariana Islands , the Solomon Islands , and New Zealand's North Island . The dissimilarity continues northeastward along the western edge of the Andes Cordillera along South America to Mexico, returning then to the islands off California. Indonesia, the Philippines, Japan, New Guinea, and New Zealand lie outside

4182-410: The eighteenth century. Magellan stopped at one uninhabited Pacific island before stopping at Guam in March 1521. Although Magellan himself died in the Philippines in 1521, Spanish navigator Juan Sebastián Elcano led the remains of the expedition back to Spain across the Indian Ocean and round the Cape of Good Hope , completing the first world circumnavigation in 1522. Sailing around and east of

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4264-487: The equator into northern (North Pacific) and southern (South Pacific) portions. It extends from the Antarctic region in the South to the Arctic in the north. The Pacific Ocean encompasses approximately one-third of the Earth's surface, having an area of 165,200,000 km (63,800,000 sq mi) – larger than Earth's entire landmass combined, 150,000,000 km (58,000,000 sq mi). Extending approximately 15,500 km (9,600 mi) from

4346-469: The equator, which can have a salinity as low as 34 parts per thousand, is less salty than that found in the mid-latitudes because of abundant equatorial precipitation throughout the year. The lowest counts of less than 32 parts per thousand are found in the far north as less evaporation of seawater takes place in these frigid areas. The motion of Pacific waters is generally clockwise in the Northern Hemisphere (the North Pacific gyre ) and counter-clockwise in

4428-420: The first completely documented European landing in Australia (1606), in Cape York Peninsula , and Abel Janszoon Tasman circumnavigated and landed on parts of the Australian continental coast and arrived at Tasmania and New Zealand in 1642. In the 16th and 17th centuries, Spain considered the Pacific Ocean a mare clausum  – a sea closed to other naval powers. As the only known entrance from

4510-420: The first humans to reach Remote Oceania , and the first to cross vast distances of open water. They also continued spreading southwards and settling the rest of Maritime Southeast Asia , reaching Indonesia and Malaysia by 1500 BCE, and further west to Madagascar and the Comoros in the Indian Ocean by around 500 CE. More recently, it is suggested that Austronesians expanded already earlier, arriving in

4592-407: The following national routes: [REDACTED] Ibaraki Prefecture with more than 300 prefectural routes. The prefecture is often alternatively pronounced "Ibara gi " by those who speak the regional dialect known as Ibaraki-ben. However, the standard pronunciation is "Ibara ki " . According to the author of "Not Ibara gi , Ibara ki " , this is most likely due to a mishearing of the softening of

4674-439: The incorporation of the island into Chile with native Rapanui in 1888. By occupying Easter Island, Chile joined the imperial nations. By 1900 nearly all Pacific islands were in control of Britain, France, United States, Germany, Japan, and Chile. Although the United States gained control of Guam and the Philippines from Spain in 1898, Japan controlled most of the western Pacific by 1914 and occupied many other islands during

4756-417: The islands in the world. There are about 25,000 islands in the Pacific Ocean. The islands entirely within the Pacific Ocean can be divided into three main groups known as Micronesia , Melanesia and Polynesia . Micronesia, which lies north of the equator and west of the International Date Line , includes the Mariana Islands in the northwest, the Caroline Islands in the center, the Marshall Islands to

4838-519: The islands of eastern Micronesia (including the Carolines , the Marshall Islands , and Kiribati ), mixing with earlier Austronesian migrations in the region. This remained the furthest extent of the Austronesian expansion into Polynesia until around 700 CE when there was another surge of island exploration. They reached the Cook Islands , Tahiti , and the Marquesas by 700 CE; Hawaiʻi by 900 CE; Rapa Nui by 1000 CE; and finally New Zealand by 1200 CE. Austronesians may have also reached as far as

4920-430: The lower reaches of the Tone River did not exist and the mouth of the Tone was in Tokyo Bay. On the plain was the Katori Sea , which existed in ancient times, the Lake Kasumigaura and other lagoons in present-day Chiba prefecture are remnants of that sea. Katori Sea was connected to the Kashima-nada (Pacific Ocean). Lake Kasumigaura is currently divided into three lakes: Nishiura, Kitaura, Sotonasakaura. In addition, in

5002-416: The martial art Aikidō. The capital Mito is home to Kairakuen , one of Japan's three most celebrated gardens, and famous for its over 3,000 Japanese plum trees of over 100 varieties. Kashima Shrine (Jingū) Ibaraki's cultural heritage. Mito Tōshō-gū , is the memorial shrine of Tokugawa Ieyasu in Mito. Seizansō was the retirement villa of Tokugawa Mitsukuni . Mito Municipal Botanical Park ,

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5084-468: The north to New Zealand in the south, also encompasses Tuvalu , Tokelau , Samoa , Tonga and the Kermadec Islands to the west, the Cook Islands , Society Islands and Austral Islands in the center, and the Marquesas Islands , Tuamotu , Mangareva Islands , and Easter Island to the east. Islands in the Pacific Ocean are of four basic types: continental islands, high islands, coral reefs and uplifted coral platforms. Continental islands lie outside

5166-437: The northeast of Tokyo , and is part of the Greater Tokyo Area , the most populous metropolitan area in the world. Ibaraki Prefecture features Lake Kasumigaura , the second-largest lake in Japan; the Tone River , Japan's second-longest river and largest drainage basin ; and Mount Tsukuba , one of the most famous mountains in Japan. Ibaraki Prefecture is also home to Kairaku-en , one of the Three Great Gardens of Japan , and

5248-485: The northern Philippines , but also earlier groups associated with Austroasiatic-speakers , resulting in the modern peoples of Island Southeast Asia and Oceania. A later seaborne migration is the Neolithic Austronesian expansion of the Austronesian peoples . Austronesians originated from the island of Taiwan c.  3000 –1500 BCE. They are associated with distinctive maritime sailing technologies (notably outrigger boats , catamarans , lashed-lug boats, and

5330-433: The northwestern Pacific and the eastern Pacific. Pacific hurricanes form south of Mexico, sometimes striking the western Mexican coast and occasionally the Southwestern United States between June and October, while typhoons forming in the northwestern Pacific moving into southeast and east Asia from May to December. Tropical cyclones also form in the South Pacific basin , where they occasionally impact island nations. In

5412-399: The ocean was encountered by Spanish explorer Vasco Núñez de Balboa in 1513 after his expedition crossed the Isthmus of Panama and reached a new ocean. He named it Mar del Sur ("Sea of the South" or "South Sea" ) because the ocean was to the south of the coast of the isthmus where he first observed the Pacific. In 1520, navigator Ferdinand Magellan and his crew were the first to cross

5494-410: The ocean's current name was coined by Portuguese explorer Ferdinand Magellan during the Spanish circumnavigation of the world in 1521, as he encountered favorable winds on reaching the ocean. He called it Mar Pacífico , which in Portuguese means 'peaceful sea'. Top large seas: Across the continents of Asia, Australia and the Americas , more than 25,000 islands, large and small, rise above

5576-439: The ocean's surface. One of the most dramatic is the Great Barrier Reef off northeastern Australia with chains of reef patches. A second island type formed of coral is the uplifted coral platform, which is usually slightly larger than the low coral islands. Examples include Banaba (formerly Ocean Island) and Makatea in the Tuamotu group of French Polynesia . The volume of the Pacific Ocean, representing about 50.1 percent of

5658-410: The prefecture there are freshwater lagoons such as Hinuma, Senba , and Ushiku. Fukuoka Dam , is a dam that spans the Kokai River in Tsukubamirai , it is one of the three largest dams in the Kantō region. Ryūjin Dam in Hitachiōta , is a beautiful dam on the Ryūjin River with a large pedestrian suspension bridge above the dam lake. Thirty-two (32) cities are located in Ibaraki Prefecture: These are

5740-464: The quest for Terra Australis ("the [great] Southern Land"), Spanish explorations in the 17th century, such as the expedition led by the Portuguese navigator Pedro Fernandes de Queirós , arrived at the Pitcairn and Vanuatu archipelagos, and sailed the Torres Strait between Australia and New Guinea, named after navigator Luís Vaz de Torres . Dutch explorers, sailing around southern Africa, also engaged in exploration and trade; Willem Janszoon , made

5822-450: The settlement of Buka by 32,000 B.P. and Manus by 25,000 B.P. Journeys of 180 kilometres (110 mi) and 230 kilometres (140 mi) are involved, respectively. The descendants of these migrations today are the Negritos , Melanesians , and Indigenous Australians . Their populations in maritime Southeast Asia , coastal New Guinea , and Island Melanesia later intermarried with the incoming Austronesian settlers from Taiwan and

5904-550: The south, and is bounded by the continents of Asia and Australia in the west and the Americas in the east. At 165,250,000 square kilometers (63,800,000 square miles) in area (as defined with a southern Antarctic border), this largest division of the World Ocean and the hydrosphere covers about 46% of Earth's water surface and about 32% of the planet's total surface area, larger than its entire land area (148,000,000 km (57,000,000 sq mi)). The centers of both

5986-504: The southeast of Hawaii is computed, and if the region is more than 0.5 °C (0.9 °F) above or below normal for that period, then an El Niño or La Niña is considered in progress. 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. Worldwide, tropical cyclone activity peaks in late summer, when

6068-415: The surface of the Pacific Ocean. Multiple islands were the shells of former active volcanoes that have lain dormant for thousands of years. Close to the equator, without vast areas of blue ocean, are a dot of atolls that have over intervals of time been formed by seamounts as a result of tiny coral islands strung in a ring within surroundings of a central lagoon . Important human migrations occurred in

6150-442: The towns and villages in each district , 10 towns and 2 villages in 7 districts: Ibaraki's economy is based on energy production (particularly nuclear energy), chemical and precision machining industries, research institutes, and tourism. Agriculture, fishing, and livestock are also important sectors in the prefecture. Ibaraki's vast flat terrain make it highly suitable for industrial development. This complements its proximity to

6232-804: The tropics and Antarctica, which records the coldest temperature readings on the planet. In the Southern hemisphere, because of the stormy and cloudy conditions associated with extratropical cyclones riding the jet stream, it is usual to refer to the Westerlies as the Roaring Forties, Furious Fifties and Shrieking Sixties according to the varying degrees of latitude. The ocean was first mapped by Abraham Ortelius ; he called it Maris Pacifici following Ferdinand Magellan 's description of it as "a pacific sea" during his circumnavigation from 1519 to 1522. To Magellan, it seemed much more calm (pacific) than

6314-586: The west, and Drake Passage and the Strait of Magellan link the Pacific with the Atlantic Ocean on the east. To the north, the Bering Strait connects the Pacific with the Arctic Ocean . As the Pacific straddles the 180th meridian , the West Pacific (or western Pacific , near Asia) is in the Eastern Hemisphere , while the East Pacific (or eastern Pacific , near the Americas) is in

6396-490: The western part of the prefecture. The Shintone and Sakura rivers flow into Lake Nishiura. The Edo River flows into Tokyo Bay; its source currently rises as an arm of the Tone River. In the past, the course of the Edo River was different, its source was corrected and diverted to the Tone River in the 17th century by the Tokugawa shogunate to protect the city of Edo (now Tokyo) from flooding. The Tone River, in addition to

6478-534: The width of the Pacific with precision for the first time in history. One of the earliest voyages of scientific exploration was organized by Spain in the Malaspina Expedition of 1789–1794. It sailed vast areas of the Pacific, from Cape Horn to Alaska, Guam and the Philippines, New Zealand, Australia, and the South Pacific. Growing imperialism during the 19th century resulted in the occupation of much of Oceania by European powers, and later Japan and

6560-434: The world's oceanic water, has been estimated at some 714 million cubic kilometers (171 million cubic miles). Surface water temperatures in the Pacific can vary from −1.4 °C (29.5 °F), the freezing point of seawater, in the poleward areas to about 30 °C (86 °F) near the equator. Salinity also varies latitudinally, reaching a maximum of 37 parts per thousand in the southeastern area. The water near

6642-670: Was a Japanese domain of the Edo-period Hitachi Province . In 1657, a Mitogaku was created when Tokugawa Mitsukuni , head of the Mito Domain, commissioned the compilation of the Dai Nihonshi , a book on the history of Japan. In Meiji era , during the Meiji Restoration , the political map changes, the old provinces are converted or merged, to create the current prefectures, in this case

6724-583: Was the first to show the Americas separating two distinct oceans. Later, the Diogo Ribeiro map of 1529 was the first to show the Pacific at about its proper size. (Inhabited dependent territories are denoted by the asterisk (*), with names of the corresponding sovereign states in round brackets. Associated states in the Realm of New Zealand are denoted by the hash sign (#).) Territories with no permanent civilian population. The Pacific Ocean has most of

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