Hunter Ridge
| Hunter Ridge | |
|---|---|
| Stratigraphic range: | |
| Type | Igneous |
| Lithology | |
| Other | Underlying diverse subduction and other rocks |
| Location | |
| Coordinates | 21°30′S 174°30′W / 21.5°S 174.5°W |
| Region | South Pacific |
| Country | Vanuatu |
| Type section | |
| Named for | Hunter Island |
The Hunter Ridge (previously known as Hunter Island Ridge, Matthew Ridge), is an active volcanic arc oceanic ridge located on the oceanic New Hebrides plate in the south-west Pacific Ocean extending at least 550 km (340 mi). It defines the south-western limit of the North Fiji Basin (NFB) and is an area of unique range in volcanic geochemistry, which transpires to have been due partially to a new, previously unrecognised, subduction zone.