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Name Elevation Location Last eruption meters feet Coordinates; Bowie Seamount-24-79: 18,000 BC Adams Seamount-59-194: 50 BCE Axial Seamount-1410: 4626: 1998
In December 2021, an eruption began on Hunga Tonga–Hunga Haʻapai, a submarine volcano in the Tongan archipelago in the southern Pacific Ocean. [7] The eruption reached a very large and powerful climax nearly four weeks later, on 15 January 2022. [8]
The existence of a belt of volcanic activity around the Pacific Ocean was known in the early 19th century; for example, in 1825 the pioneering volcanologist G. P. Scrope described the chains of volcanoes around the Pacific Ocean's rim in his book Considerations on Volcanos . [16]
Before the 2022 eruption, the volcano's caldera was roughly 150 m below sea-level, and had a size of 4 × 2 km. [7] Its northern and southern portions were filled by volcanic deposits from previous eruptions. [7] Before the 2015 eruption, the two subaerial islands were about 1.6 km (0.99 mi) apart, [12] and were each about 2 km (1.2 mi) long.
The volcanic island of Anak Krakatau in Indonesia saw an eruption on 22 December 2018 which caused a deadly tsunami, with waves surging up to five meters in height. The tsunami killed at least 437 ...
The 1998 eruption of Axial Seamount was preceded by several large earthquake swarms, common indicators of volcanic activity. The swarms correlated to magma movements in the volcano; bottom pressure recorders deployed on the volcano between 1987 and 1992 recorded five instances of deflation in the summit surface (caused by lava movement ...
An eruption on the Red Sea island killed at least 7 soldiers and spewed lava and ash hundreds of metres into the air. [107] 1 Raoul Island [108] Kermadec Islands, New Zealand 2006 1 An eruption on 17 March killed conservation worker Mark Kearney, who was measuring the water temperature of Green Lake. [109] 3 Santa Ana [110] El Salvador 2005 2
List of volcanoes in French Southern and Antarctic Lands; List of volcanoes in New Zealand; List of volcanoes in the Pacific Ocean; List of volcanoes in Papua New Guinea; List of volcanoes in Solomon Islands; List of volcanoes in South Sandwich Islands; List of volcanoes in Tristan da Cunha; List of volcanoes in Tonga; List of volcanoes in Vanuatu