Mount St Helens and Spirit Lake, 1988. Image: Roger Suthren

Volcano video and audio clips

• Movie: Oceanic Volcano - explosive interaction of basaltic magma with sea water

Mudflows (lahars) and floods; magma-water interaction

• Water on volcanoes: heavy rain and crater lakes
• Mudflows, Debris Flows, and Lahars
• Geology of Interactions of Volcanoes, Snow, and Water (sections on Mt St Helens, Mt Rainier)
• Jökulhlaups
• River drainages
• Lahars and Their Effects

Photographs

• Mudflow and lahar images, Mount St Helens

Information on specific volcanoes or volcanic regions

• Lahars, Mount St Helens
• Flow and Deposition of Posteruption Hot Lahars on the East Side of Mount Pinatubo, July-October 1991
• Assessment and Response to Lahar Hazard around Mount Pinatubo, 1991 to 1993