Enormous volcanic eruption 1000km north of NZ went unnoticed - KaidulA volcanic eruption as powerful as Mount St Helens happened on the floor of the Pacific Ocean about 1000km north of New Zealand, scientists from the University of Tasmania have">

Enormous volcanic eruption 1000km north of NZ went unnoticed

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A volcanic eruption as powerful as Mount St Helens happened on the floor of the Pacific Ocean about 1000km north of New Zealand, scientists from the University of Tasmania have found.

The Havre volcano erupted in 2012, butdata-reactid=”60″>

A volcanic eruption as powerful as Mount St Helens happened on the floor of the Pacific Ocean about 1000km north of New Zealand, scientists from the University of Tasmania have found.

The Havre volcano erupted in 2012, but was only noticed when a New Zealand woman spotted something on the water surface on a flight home from Samoa.

The eruption left a 400 square kilometre blanket of ash and pumice on the ocean surface.

Three-quarters of the Earth's volcanoes are on the ocean floor, but very little is known about them, according to the University of Tasmania's Rebecca Carey.

“We then knew that this was an event that only happens on land about four times per century,” Dr Carey told Newsweek.

“On the seafloor they are as common, however always undetected.”

The Havre volcano in relation to Australia and New Zealand.

Researchers used robotic submarines to survey the Havre volcano, noting the profound impact the eruption had on the shape of the underwater mountain.

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Pumice from the eruption drifted ashore in New Zealand and Australia.

Scientists are now observing the impact the volcanic eruption had on marine life.

“There is a decade worth of interdisciplinary science to do based on our 2015 voyage data and samples,” Dr Carey said.

“It's very exciting to marry the geosciences with other scientific disciplines addressing novel research questions.”

Dr Carey's study was published yesterday in Science Advances.

© Nine Digital Pty Ltd 2018

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  • Volcano
  • Pacific
  • New Zealand
  • science
  • tasmania

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