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The umbrella term Pacific Islands has taken on several meanings. [1] Sometimes it is used to refer only to the islands defined as lying within Oceania. [2] [3] [4] At other times, it is used to refer to the islands of the Pacific Ocean that were previously colonized by the British, French, Spaniards, Portuguese, Dutch, or Japanese, or by the United States.
The Polynesian Triangle is a geographical region of the Pacific Ocean with Hawaii (Hawaiʻi) (1), New Zealand (Aotearoa) (2) and Easter Island (Rapa Nui) (3) at its corners, but excluding Fiji on its western side. At the center is Tahiti (5), with Samoa (4) to the west.
Today the term South Seas, or South Sea, most commonly refers to the portion of the Pacific Ocean south of the equator. [1] [2] [3] The term South Sea may also be used synonymously for Oceania, or even more narrowly for Polynesia or the Polynesian Triangle, an area bounded by the Hawaiian Islands, New Zealand and Easter Island.
The 3rd edition, currently in force, of the International Hydrographic Organization's (IHO) Limits of Oceans and Seas defines the limits of the South Pacific Ocean (excluding the seas it contains) as follows: [9] On the West. From Southeast Cape, the Southern point of Tasmania, down the meridian of 146°55'E to the Antarctic continent.
The South Pacific region around Australia and New Zealand contains the greatest number of oceanic plateaus (see map). Oceanic plateaus produced by large igneous provinces are often associated with hotspots , mantle plumes , and volcanic islands — such as Iceland, Hawaii, Cape Verde, and Kerguelen.
Tonga Trench south of the Samoa Islands and north of New Zealand. The 2009 Samoa earthquake and tsunami killed more than 170 people in the Samoa Islands and Tonga. The M8.1 submarine earthquake took place in the region at 06:48:11 local time on September 29, 2009 (17:48:11 UTC, September 29), followed by smaller aftershocks. [27]
The Polynesian triangle. Between about 3000 and 1000 BC speakers of Austronesian languages spread through the islands of Southeast Asia – most likely starting out from Taiwan, [9] as tribes whose natives were thought to have previously arrived from mainland South China about 8000 years ago – into the edges of western Micronesia and on into Melanesia, through the Philippines and Indonesia.
The raid was intended by the Americans to confuse the Japanese about US intentions in the Pacific, a feint to draw Japanese attention away from the planned invasion route through the Solomons. It is instead believed to have alerted the Japanese to the strategic importance of the Gilbert Islands and led to their reinforcement and fortification.