Last year's volcanic eruption in the Pacific caused the fastest underwater flows ever recorded.

The atmospheric disturbance from last year's immense eruption in Tonga reached far and wide.

From a billion-tonne magma hammer to the ejection of water to space, January's eruption still amazes.

Prodigious volumes of rocky debris blanketed the ocean bottom in January's cataclysmic blast.

Dr Kevin Mackay describes what's been learnt about the eruption of Hunga-Tonga Hunga-Haʻapai.

Scientists modelling January's Tonga volcanic eruption have modelled debris flows on the seafloor.

Uncrewed surface vessel Maxlimer surveys the underwater Hunga-Tonga seamount that erupted in January.

Emily Bird visits the Essex control room operating an uncrewed surface vessel in the Pacific Ocean.