The volcano was discovered by an airline passenger, who reported seeing the lava flow from the air, and reported it to scientific authorities, Xinhua news agency reported.

Vulcanologist Rebecca Carey from the University of Tasmania in Australia, one of the researchers from the five-nation team, will travel to the Kermadec arc, which is about 1,000 km north of New Zealand.

Carey told the Australian Broadcasting Corporation (ABC) on Monday that the eruption has produced about a cubic kilometre of pumice. She said the eruption of the undersea Havre Volcano was a one-in-10,000-year event and a rare chance for scientists to learn more about volcano.

"Havre probably has an eruption frequency of maybe one of these type of eruptions every 10,000 years, so it's just our luck I guess that it erupted and we saw satellite images and we've also got pumice," she said.

"These eruptions are very frequent. It's just that unless we get a pumice raft or significant seismicity next to a monitoring station, we have no idea that these eruptions are occurring."


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