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News & updates:

Location of the observed pumice rafts (image: GeoNet)
Monday, Nov 28, 2016
It is still unclear which volcano produced the pumice raft observed west of Minerva Reef southwest of Tonga (Pacific Ocean) by a New Zealand Royal Air Force aircraft on 16 November. ... [details]
Pumice raft observed on 31 Oct near Monovai seamount (RNZAF via GeoNet)
Friday, Nov 14, 2014
New Zealand scientists concluded that most likely 3 underwater eruptions occurred during this October at the shallow submarine volcano, one of the most active ones in the Tonga-Kermadec arc. ... [details]
 

Volcans en Kermandec Islands (7 volcans)

Curtis Island | Giggenbach | Havre Seamount | Macauley Island | Monowai | Raoul Island | Volcano W
Curtis Island
(Submarine volcano)
[informations]

Giggenbach
(Submarine volcano)
[informations]

Havre Seamount
(Volcan sous-marin)
Havre Seamount is an active submarine volcano in the Kermandec Island arc about 75 SW of Curtis island. Little is known about the volcano. Its first document eruption probably started around 18 July 2012 and was discovered in August 2012 after a large pumice raft was discovered i... [informations]

Macauley Island
(Caldera)
[informations]

Monowai
(Volcan sous-marin)
Map view shows Monowai submarine volcano at the lower left, with subsidiary cones on its northern flank. A large submarine caldera lies at the upper right lies to the NE. The contour interval is 100 meters, and the resolution of the bathymetry data is 25 meters. The proprietary bathymetry data were obtained by scientists of the New Zealand National Institute of Water and Atmospheric Research (NIWA) during a 2005 New Zealand/American NOAA Ocean Explorer research expedition to the Kermadec-Tonga arc. Image courtesy of Ian Wright, 2005 (NIWA; http://oceanexplorer.noaa.gov/explorations/05fire)Monowai seamount (also known as Orion seamount) is one of the most active volcanoes of the Kermancec Arc. It has a large submarine caldera and is located halfway between Tonga and the Kermadec Islands. Eruptions at Monowai occur every few years. [informations]

Raoul Island
(stratovolcan)
Raoul Island volcano is the northernmost, largest and best known of the Kermandec islands NE of New Zealand.
The anvil shaped 10 x 6 km wide island is the top of a large stratovolcano breaching the sea surface. At its submarine base, the volcano measures 35 x 20 km. The vo... [informations]

Volcano W
(Submarine volcanoes)
[informations]
 

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