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Pacific Ocean

Oceans

Population

N/A

Area

168.723 km²

GDP

N/A

GDP Per Capita

N/A

Map of Pacific Ocean

Background

The Pacific Ocean is the largest of the world's five ocean basins (followed by the Atlantic Ocean, Indian Ocean, Southern Ocean, and Arctic Ocean). Strategically important access waterways include the La Perouse, Tsugaru, Tsushima, Taiwan, Singapore, and Torres Straits. The International Hydrographic Organization decision in 2000 to delimit a fifth world ocean basin, the Southern Ocean, removed the portion of the Pacific Ocean south of 60 degrees south. For convenience and because of its immense size, the Pacific Ocean is often divided at the Equator and designated as the North Pacific Ocean and the South Pacific Ocean.

Geography13

Location

body of water between the Southern Ocean, Asia, Australia, and the Western Hemisphere

Geographic coordinates

0 00 N, 160 00 W

Area

total : 168.723 million sq km

Area - comparative

about 15 times the size of the US; covers about 28% of the global surface; almost equal to the total land area of the world

Coastline

135,663 km

Climate

planetary air pressure systems and resultant wind patterns exhibit remarkable uniformity in the south and east; trade winds and westerly winds are well-developed patterns, modified by seasonal fluctuations; tropical cyclones (hurricanes) may form south of Mexico from June to October and affect Mexico and Central America; continental influences cause climatic uniformity to be much less pronounced in the eastern and western regions at the same latitude in the North Pacific Ocean; the western Pacific is monsoonal - a rainy season occurs during the summer months, when moisture-laden winds blow from the ocean over the land, and a dry season during the winter months, when dry winds blow from the Asian landmass back to the ocean; tropical cyclones (typhoons) may strike southeast and east Asia from May to December

Ocean volume

ocean volume: 669.88 million cu km
percent of World Ocean total volume: 50.1%

Major ocean currents

the clockwise North Pacific Gyre formed by the warm northward flowing Kuroshio Current in the west, the eastward flowing North Pacific Current in the north, the southward flowing cold California Current in the east, and the westward flowing North Equatorial Current in the south; the counterclockwise South Pacific Gyre composed of the southward flowing warm East Australian Current in the west, the eastward flowing South Pacific Current in the south, the northward flowing cold Peru (Humbolt) Current in the east, and the westward flowing South Equatorial Current in the north

Bathymetry

continental shelf

the following are examples of features on the continental shelf of the Pacific Ocean:

Arafura Shelf (Figure 5)
Sahul Shelf (Figure 5)
Sunda Shelf (Figure 5)
Taiwan Banks (Figure 5)

continental slope

the following are examples of features on the continental slope of the Pacific Ocean:

Pribilof Canyon (Figure 2)
Zhemchug Canyon (Figure 2; deepest submarine canyon)

abyssal plains

the following are examples of features on the abyssal plains of the Pacific Ocean:

Aleutian Basin (Figure 2)
Central Pacific Basin (Figure 2)
Northeast Pacific Basin (Figure 2)
Northwest Pacific Basin (Figure 2)
Philippine Basin (Figure 4)
Southwest Pacific Basin (Figure 4)
Tasman Basin (Figure 4)

mid-ocean ridge

the following are examples of mid-ocean ridges on the floor of the Pacific Ocean:

East Pacific Rise (Figure 3)
Pacific-Antarctic Ridge (Figure 3)

undersea terrain features

the following are examples of undersea terrain features on the floor of the Pacific Ocean:

Caroline Seamounts (Figure 5)
East Mariana Ridge (Figure 4)
Emperor Seamount Chain (Figure 2)
Hawaiian Ridge (Figure 2)
Lord Howe Seamount Chain (Figure 4)
Louisville Ridge (Figure 4)
Kapingamarangi (Ontong-Java) Rise (Figure 5; largest submarine plateau)
Macclesfield Bank (Figure 5)
Marshall Seamounts (Figure 2)
Magellan Seamounts (Figure 2)
Mid-Pacific Seamounts (Figure 2)
Reed Tablemount (Figure 5)
Shatsky Rise (Figure 2; third-largest submarine plateau)
Tonga-Kermadec Ridge (Figure 4)

ocean trenches

the following are examples of ocean trenches on the floor of the Pacific Ocean:

Aleutian Trench (Figure 2)
Chile Trench (Figure 3)
Izu-Ogasawara Trench (Figure 2)
Japan Trench (Figure 2)
Kermadec Trench (Figures 3, 4)
Kuril-Kamchatka Trench (Figure 2)
Manus Trench (Figure 4)
Mariana Trench (Figures 2, 4; deepest ocean trench)
Middle America Trench (Figure 3)
Nansei-Shoto Trench (Figure 5)
Palau Trench (Figures 2, 4)
Philippine Trench (Figure 4)
Peru-Chile Trench (Figure 3)
South New Hebrides Trench (Figure 4)
Tonga Trench (Figures 3, 4)
Yap Trench (Figures 2, 4)

atolls

the following are examples of atolls in the Pacific Ocean, and because they are also countries or territories, they have entries in The World Factbook with additional information:

Federated States of Micronesia
French Polynesia
Kiribati
Marshall Islands
Midway Island
Tonga
Tuvalu
Vanuatu
Wake Island

Elevation

highest point: sea level
lowest point: Challenger Deep in the Mariana Trench -10,924 m
mean depth: -4,080 m
ocean zones: the ocean is divided into three zones based on depth and light level; sunlight entering the water may travel about 1,000 m into the oceans under the right conditions, but there is rarely any significant light below 200 m

euphotic zone: the upper 200 m (656 ft) is also called "sunlight" zone; only a small amount of light penetrates beyond this depth

dysphotic zone: between 200 m (656 ft) and 1,000 m (3,280 ft), and also called the twilight zone; the intensity of light rapidly dissipates as depth increases, and photosynthesis is no longer possible

aphotic zone: below 1,000 m (3,280 ft) and also called the midnight zone; sunlight does not penetrate to these depths

Natural resources

oil and gas fields, polymetallic nodules, sand and gravel aggregates, placer deposits, fish

Natural hazards

surrounded by a zone of violent volcanic and earthquake activity sometimes referred to as the "Pacific Ring of Fire"; up to 90% of the world's earthquakes and some 75% of the world's volcanoes occur within the Ring of Fire; 80% of tsunamis, caused by volcanic or seismic events, occur within the "Pacific Ring of Fire"; subject to tropical cyclones (typhoons) in southeast and east Asia from May to December (most frequent from July to October); tropical cyclones (hurricanes) may form south of Mexico and strike Central America and Mexico from June to October (most common in August and September); cyclical El Niño/La Niña phenomenon occurs in the equatorial Pacific, influencing weather in the Western Hemisphere and the western Pacific; ships subject to superstructure icing in extreme north from October to May; persistent fog in the northern Pacific can be a maritime hazard from June to December

Geography - note

the major chokepoints are the Bering Strait, Panama Canal, Luzon Strait, and the Singapore Strait; the equator divides the Pacific Ocean into the North Pacific Ocean and the South Pacific Ocean; dotted with low coral islands and rugged volcanic islands in the southwestern Pacific Ocean; much of the Pacific Ocean's rim lies along the Ring of Fire, which is a belt that contains about 75% of the world's volcanoes and up to 90% of the world's earthquakes; the Pacific Ocean is the deepest ocean basin, averaging 4,000 m (13,123 ft) in depth

Government1

Country name

etymology: named by Portuguese explorer Ferdinand MAGELLAN while circumnavigating the world in 1520; he called it "Mar Pacifico," which means "peaceful sea" in both Portuguese and Spanish, because he encountered no storms during the crossing

Compare Pacific Ocean

See how Pacific Ocean compares to other countries side by side.

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