An undersea volcano erupts near the island of Tongatapu, Tonga, where up to 36 undersea volcanoes are clustered (also known as 'submarine volcanoes'). Fortunately it did not pose a danger to residents of the island.

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• Wikipedia: Submarine volcano

Original description:
Scientists sailed on Thursday to inspect an undersea volcano that has been erupting for days near Tonga, shooting smoke, steam and ash thousands of feet into...