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Scientists return to active undersea volcano 20 March 2009

Posted by admin in current research, geoscience, Pacific, submarine volcanism.
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In 2004 an international team of scientists using a remotely-operated submersible witnessed an undersea volcanic eruption for the first time at Northwest Rota-1, a seamount rising to 517 metres below the sea surface in the Mariana Islands. Further scientific studies were carried out at the site in 2005 and 2006. Last year hydrophones recorded sounds of eruptive activity at the site.

In April this year the scientific team will be returning to Northwest Rota-1 for further studies, says a press release from Oregon State University:

During the two-week project, the scientists will deploy long-term monitoring instruments including hydrophones, chemical sensors, current meters and plume sensing devices that will allow them to study for the first time the patterns of activity over an entire year. They also will make additional visual observations of the eruptive activity, hydrothermal vents and biological communities, and will collect samples of lava, gas and fluids from the volcano.

It will be fascinating to see what they come up with. The NOAA website for the April 2009 cruise can be found here: Vents Program: Marianas.

The Volcanism Blog