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Atlantic seafloor felt Pacific volcano megablast

Unexpected Elements. One year on from the Tonga eruption. Audio, 57 minutesUnexpected Elements

Science In Action. One year on from the Tonga eruption. Audio, 29 minutesScience In Action

Tonga volcano eruption continues to astonish

Tonga volcanic eruption reshaped Pacific seafloor

'The biggest eruption recorded by instruments' Audio, 00:16:53'The biggest eruption recorded by instruments'

How a volcanic flow moves along the seafloor. Video, 00:00:28How a volcanic flow moves along the seafloor

Robot boat maps Pacific underwater volcano

Driving a robot boat on the other side of the world. Audio, 00:06:48Driving a robot boat on the other side of the world

UK robot boat maps Pacific underwater volcano. Video, 00:00:23UK robot boat maps Pacific underwater volcano

Unexpected Elements. Heat death by volcano and other stories. Audio, 57 minutesUnexpected Elements

Science In Action. Heat death by volcano and other stories. Audio, 30 minutesScience In Action

Immense crater hole created in Tonga volcano

Explosive Tonga volcano 'surprisingly intact'

Tonga eruption was 'record atmospheric explosion'

Professor snorkels over Tonga volcano

Unexpected Elements. Tsunami detective in Tonga. Audio, 62 minutesUnexpected Elements

Science In Action. Tsunami detective in Tonga. Audio, 34 minutesScience In Action

Digital Planet. Robot boat to survey Tonga volcano. Audio, 53 minutesDigital Planet

Robot boat to map Tonga volcano aftermath

Vete thanks Hull public for Tonga help

Tonga internet link restored after eruption

Tongans suffering trauma from disasters, says PM