In TV & Radiofollow-up:
Wallpaper installation instructions
Click on images for larger version.
Read about the programmes.
The world's biggest bang
Starvation could follow a super-eruption, if the Asian Monsoon rains fail
as experts predict.
Respond to a disaster
Play a game where it's your job to handle an eruption of the fictional Mount Spur.
Read a transcript of the programme that inspired Supervolcano.
Ten per cent of the world's population may live within volcanic danger zones.
Radio 4: Supervolcano
Listen as Peter Evans meets scientists studying the Yellowstone supervolcano.
USGS photo library
The US Geological Survey has an extensive collection of geology photographs.
Images of volcanoes
Volcano World has pictures of volcanoes around the globe.