Geography Tonga

Location:

Oceania, archipelago in the South Pacific Ocean, about two-thirds

of the way from Hawaii to New Zealand

Geographic coordinates:

20 00 S, 175 00 W

Map references:

Oceania

Area:

total: 748 sq km

water: 30 sq km

land: 718 sq km

Area - comparative:

four times the size of Washington, DC

Land boundaries:

0 km

Coastline:

419 km

Maritime claims:

continental shelf: 200-m depth or to the depth of exploitation

territorial sea: 12 NM

exclusive economic zone: 200 NM

Climate:

tropical; modified by trade winds; warm season (December to May),

cool season (May to December)

Terrain:

most islands have limestone base formed from uplifted coral

formation; others have limestone overlying volcanic base

Elevation extremes:

lowest point: Pacific Ocean 0 m

highest point: unnamed location on Kao Island 1,033 m

Natural resources:

fish, fertile soil

Land use:

arable land: 23.61%

permanent crops: 43.06%

other: 33.33% (1998 est.)

Irrigated land:

NA sq km

Natural hazards:

cyclones (October to April); earthquakes and volcanic activity on

Fonuafo'ou

Environment - current issues:

deforestation results as more and more land is being cleared for

agriculture and settlement; some damage to coral reefs from starfish

and indiscriminate coral and shell collectors; overhunting threatens

native sea turtle populations

Environment - international agreements:

party to: Biodiversity, Climate Change, Desertification, Law of the

Sea, Marine Life Conservation, Nuclear Test Ban, Ozone Layer

Protection, Ship Pollution

signed, but not ratified: none of the selected agreements

Geography - note:

archipelago of 169 islands (36 inhabited)

The 2003 CIA World Factbook · 第 2434 / 3264 题