Johnston Atoll

Introduction ::Johnston Atoll


Both the US and the Kingdom of Hawaii annexed Johnston Atoll in 1858, but it was the US that mined the guano deposits until the late 1880s. Johnston Island and Sand Island were designated wildlife refuges in 1926. The US Navy took over the atoll in 1934, and subsequently the US Air Force assumed control in 1948. The site was used for high-altitude nuclear tests in the 1950s and 1960s, and until late in 2000 the atoll was maintained as a storage and disposal site for chemical weapons. Cleanup and closure of the weapons facility ended in May 2005.

Geography ::Johnston Atoll


Oceania, atoll in the North Pacific Ocean 717 nm (1328 km) southwest of Honolulu, Hawaii, about one-third of the way from Hawaii to the Marshall Islands

Geographic coordinates:

16 45 N, 169 31 W


total: 2.63 sq km

land: 2.63 sq km

water: 0 sq km

Area - comparative:

about 4.7 times the size of The Mall in Washington, DC

Land boundaries:

0 km


34 km

Maritime claims:

territorial sea: 12 nm

exclusive economic zone: 200 nm


tropical, but generally dry; consistent northeast trade winds with little seasonal temperature variation


mostly flat

Elevation extremes:

lowest point: Pacific Ocean 0 m

highest point: Summit Peak 5 m

Natural resources:

guano deposits (worked until depletion about 1890), terrestrial and aquatic wildlife

Land use:

arable land: 0%

permanent crops: 0%

other: 100% (2011)

Irrigated land:

0 sq km (2011)

Natural hazards:


Environment - current issues:

no natural fresh water resources

Geography - note:

strategic location in the North Pacific Ocean; Johnston Island and Sand Island are natural islands, which have been expanded by coral dredging; North Island (Akau) and East Island (Hikina) are manmade islands formed from coral dredging; the egg-shaped reef is 34 km in circumference; closed to the public; a former US nuclear weapons test site; site of now-closed Johnston Atoll Chemical Agent Disposal System (JACADS); most facilities dismantled and cleanup complete in 2004; some low-growing vegetation

People and Society ::Johnston Atoll


315 uninhabited

note: in previous years, there was an average of 1,100 US military and civilian contractor personnel present; as of September 2001, population had decreased significantly when US Army Chemical Activity Pacific (USACAP) departed; as of May 2005 all US government personnel had left the island (July 2010 est.)

Government ::Johnston Atoll

Country name:

conventional long form: none

conventional short form: Johnston Atoll

Dependency status:

unincorporated territory of the US; administered from Honolulu, HI, by Pacific Air Forces, Hickam Air Force Base, and the Fish and Wildlife Service of the US Department of the Interior as part of the National Wildlife Refuge system

Legal system:

the laws of the US, where applicable, apply

Flag description:

the flag of the US is used

Transportation ::Johnston Atoll

Airports - with paved runways:

total: 1

2,438 to 3,047 m: 1 (2013)

Ports and terminals:

Johnston Island

Military ::Johnston Atoll

Military - note:

defense is the responsibility of the US

Transnational Issues ::Johnston Atoll

Disputes - international:


The World Factbook. 2014.

Look at other dictionaries:

  • Johnston Atoll — Introduction Johnston Atoll Background: Both the US and the Kingdom of Hawaii annexed Johnston Atoll in 1858, but it was the US that mined the guano deposits until the late 1880s. The US Navy took over the atoll in 1934, and subsequently the US… …   Universalium

  • Johnston Atoll — The unofficial flag of Johnston Atoll which was used to represent the island in a December 7, 2001, Pearl Harbor ceremony. The official flag for all U.S. minor outlying islands is the U.S. flag …   Wikipedia

  • Johnston-Atoll — Vorlage:Infobox Insel/Wartung/Höhe fehlt Johnston Atoll Satellitenbild des Johnston Atolls Gewässer Pazifischer Ozean …   Deutsch Wikipedia

  • Johnston Atoll — Admin ASC 1 Code Orig. name Johnston Atoll Country and Admin Code UM.200 UM …   World countries Adminstrative division ASC I-II

  • Johnston Atoll — n. atoll in North Pacific Ocean (one third of the way from Hawaii to the Marshall Islands) which forms a part of the United States Minor Outlying Islands …   English contemporary dictionary

  • Johnston Atoll — …   Useful english dictionary

  • Johnston Atoll Airport — Map of the islands of Johnston Atoll, showing airstrip on Johnston Island IATA: JON – ICAO: PJON Summary …   Wikipedia

  • Atoll De Johnston — Pour les articles homonymes, voir Johnston. Atoll de Johnston Johnston Atoll (en) …   Wikipédia en Français

  • Johnston — ist der Familienname folgender Personen: Abby Johnston (* 1989), US amerikanische Wasserspringerin Albert S. Johnston (1803–1862), General der Konföderierten während der Sezessionskriege Alexander Keith Johnston (1804–1871), schottischer Geograph …   Deutsch Wikipedia

  • Johnston — is a surname, and it may also refer to:In places: * Johnston Atoll, in the central Pacific Ocean * Johnston, Pembrokeshire, Wales * United States ** Johnston, Iowa ** Johnston, Rhode Island ** Johnston, South Carolina ** Johnston County, North… …   Wikipedia

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