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

Hawaii's Kilauea volcano is erupting again

'Lava lake' as Hawaii's Kilauea volcano erupts. Video, 00:00:39'Lava lake' as Hawaii's Kilauea volcano erupts

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

Tonga volcano eruption continues to astonish

One of Central America's most active volcanoes erupts. Video, 00:00:57One of Central America's most active volcanoes erupts

Alert issued after volcano erupts in Chile

Indonesian volcanic eruption prompts evacuations

In Pictures: Mauna Loa erupts

What's happening inside the world's biggest volcano?

Spectacular scenes as Hawaii volcano erupts. Video, 00:00:54Spectacular scenes as Hawaii volcano erupts

Mauna Loa volcano eruption, lava seen from space. Video, 00:01:13Mauna Loa volcano eruption, lava seen from space

World's largest active volcano erupts in Hawaii. Video, 00:00:22World's largest active volcano erupts in Hawaii

World's largest active volcano erupts in Hawaii

Plume of gas rises from Ecuador's Cotopaxi volcano

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

One of world's most active volcanoes erupts again. Video, 00:00:46One of world's most active volcanoes erupts again

The world's worst team reinvented after disaster

Short Cuts. Series 32, Memento Mori. Audio, 28 minutesShort Cuts

Hulda's Cafe. Volcano. Audio, 14 minutesHulda's Cafe

Climbers killed in fall on active Russian volcano