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Multibeam sonar image of Havre seamount, with the new cone formed during the July 2012 eruption marked. (Eruptions Blog / NIWA, GNS Science)
vendredi, oct. 26, 2012
The submarine eruption from Havre seamount in July-August this year has been confirmed by direct observation. ... [details]
The streamers of pumice (likely each less than a few kilometers across) from the July 18, 2012 eruption of Havre seamount spreading across the Pacific Ocean. The pumice has spread over an area of over 250,00 square kilometers in a little over one month. Image taken August 19, 2012, courtesy of NASA and R. Simmon, annotations by E. Klemetti / Eruptions Blog
mercredi, août 22, 2012
The pumice rafts from the recent eruption of Havre Seamount in the Kermandec archipelago (discovered 9 Aug) are spreading across the ocean, currently over an area of 270,000 km2 / 100,000 sq. miles of the Pacific Ocean. No new pumice has been observed, which could indicate that the eruption has waned or is over. ... [details]

Volcans en Kermandec Islands (7 volcans)

Monowai | Raoul Island | Giggenbach | Macauley Island | Curtis Island | Havre Seamount | Volcano W
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]

Giggenbach
(Volcan sous-marin)
[informations]

Macauley Island
(caldeira)
[informations]

Curtis Island
(Volcan sous-marin)
[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]

Volcano W
(volcans sous-marins)
[informations]
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