- American Samoa - The World Factbook (cia.gov)
Tutuila – the largest island in American Samoa – was settled by 1000 B.C., and the island served as a refuge for exiled chiefs and defeated warriors from the other Samoan islands. The Manu’a Islands, which are also now part of American Samoa, developed a traditional chiefdom that maintained autonomy by controlling oceanic trade.
- New Hebrides Plate (Wikipedia)
The New Hebrides Plate, sometimes called the Neo-Hebridean Plate, is a minor tectonic plate (just larger than a microplate) located in the Pacific Ocean. While most of it is submerged as the sea bottom of the North Fiji Basin, the island country of Vanuatu, with multiple arc volcanoes, is on the western edge of the plate. It is bounded on the south-west by the Australian Plate, which is subducting below it at the New Hebrides Trench. The Vanuatu subduction zone is seismically active, producing many earthquakes of magnitude 7 or higher. To its north is the Pacific Plate, north-east the Balmoral Reef Plate and to its east the Conway Reef Plate.