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It lies about 6 km (3.7 mi) north of Tofua island and reaches 1,030 m (3,379 ft) above sea level, the highest point in Tonga. The date of its last eruption is unknown. Although Kao does not display fresh-looking lava flows, it is likely very recent in origin due to the absence of deep gullies or high sea cliffs.
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. [2]
Location of Haʻapai District in Tonga. Haʻapai is a group of islands, islets, reefs, and shoals in the central part of Tonga. It has a combined land area of 109.30 square kilometres (42.20 sq mi). The Tongatapu island group lies to its south, and the Vavaʻu group lies to its north. Seventeen of the Haʻapai islands are inhabited.
Hunga Tonga and Hunga Haʻapai are the only subaerial parts of the volcano. Hunga Tonga is the eastern island, while Hunga Haʻapai is the western one. They are part of Tonga's Haʻapai group of islands, [15] an island arc formed at the convergent boundary where the Pacific Plate subducts under the Indo-Australian Plate. [6] [16] [17]
Home Reef is a volcanic island atop a submarine volcano in Tonga.It is located southwest of Vava'u, between the islands of Kao and Late along the Tofua volcanic arc.The island is ephemeral, and has been repeatedly built and eroded by successive eruptions in 1852, 1857, 1984, 2006, 2022, and 2023.
The Tonga Meteorological Services said a tsunami warning was in effect for all of the archipelago, and data from the Pacific Tsunami Warning Center showed waves of 80 centimeters (2.6 feet) had ...
Ocean View is located at the southern end of the island of Hawaii at (19.107649, -155.767186), [6] on the southwest rift zone of the shield volcano Mauna Loa. Its elevation ranges from 600 feet (180 m) above sea level along the southern edge of the CDP, to 4,900 feet (1,500 m) along the northern edge.
Government of Tonga, official 1962 land survey Siebert L, Simkin T (2002–present). Volcanoes of the World: an Illustrated Catalog of Holocene Volcanoes and their Eruptions .