Tofua

thumb|right|Tofua caldera

Key facts

Mountain.photo: Tofua Island and Kao Island Sentinel-2 L2A image on 28 December 2021 (cropped).jpg
Mountain.photo_caption: Tofua Island (lower left) and neighbouring Kao Island, Tonga, Pacific Ocean
Mountain.elevation_m: 515
Mountain.prominence_m: 515
Mountain.map: Tonga
Mountain.map_size: 150
Mountain.label_position: right
Mountain.listing: List of volcanoes in Tonga
Mountain.location: Tonga Islands, Tonga
Mountain.formed_by: Subduction zone volcanism
Mountain.type: Caldera
Mountain.last_eruption: 2025 (Ongoing)

via Wikipedia infobox

Wikidata facts

Population: 200
Area: 55.63
Elevation: 515
Image: Tofua Kao NASA 175.03049W 19.71884S.png
Width: 7.7
Length: 9.7

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Commons category: Tofua
topographic prominence: 515

Sources (3)

via Wikidata · CC0

~6 min read

Article

6 sections

Contents

Geography and geology
History
The oral tradition of Kao and Tofua
Ecology
See also
References

thumb|right|Tofua caldera

Tofua is a volcanic island in Tonga. Located in the Haʻapai island group, it is a steep-sided composite cone with a summit caldera. It is part of the highly active Kermadec-Tonga subduction zone and its associated volcanic arc, which extends from New Zealand north-northeast to Fiji, and is formed by the subduction of the Pacific Plate under the Indo-Australian Plate. It lies about above a very active seismic zone. It is connected to the nearby island of Kao by a submarine ridge. As of August 2025, the cone contains a lava lake.