Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jan 30, 2013
From 2005 to 2010, the U.S. Geological Survey-Cascades Volcano Observatory operated a remote camera on Mount St. Helens. The time-lapse sequence shows Crater Glacier's remarkable runaway response to a growing lava dome in the volcano's crater.