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
Article
6 sectionsContents
- 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.