Mount St. Helens: A Catalyst for Change
19:45
Mount St. Helens eruption highlights: September 2004 - May 2005
45:20
May 18, 1980 Mount St. Helens Eruption: Stories from USGS Scientists
7:31
Mount St. Helens: May 18, 1980
57:49
Mount St. Helens: Steam, Ash Emissions and Dome Growth, October 2004
20:56
Mount St. Helens in eruption, May 18, 1980
6:20
Mount Rainier Lahars: Hazards for the Puyallup and Nisqually River Drainages
24:09
Kīlauea Summit Eruption — Lava Returns to Halemaʻumaʻu
13:47