Washington’s Mount St. Helens Was Finally Caught in the Act

In 2004, Mount St. Helens woke up again, and this time it didn't explode. It grew. For more than three years, solid rock rose out of the crater floor at up to ten cubic meters every second, quietly rebuilding the mountain that blew itself apart in 1980. This documentary follows the 2004–2008 eruption day by day: the eighteen days of unrest, the whaleback spine, the mysterious "drumbeat" earthquakes, the instruments the volcano kept destroying, and the glacier that refused to melt. Why was it so quiet, why did it stop, and will Mount St. Helens keep growing back? CHAPTERS 0:00 Cold open 1:25 Part One · Eighteen Days 5:03 Part Two · A Mountain That Grows in Fits 7:37 Part Three · The Rock Arrives 11:21 Part Four · The Silent Eruption 15:42 Part Five · Breaking the Instruments 19:10 Part Six · The Glacier That Wouldn't Melt 21:49 Part Seven · Why It Stopped SOURCES U.S. Geological Survey, "A Volcano Rekindled: The Renewed Eruption of Mount St. Helens, 2004–2006" (Professional Paper 1750) Iverson, R.M. et al. (2006), "Dynamics of seismogenic volcanic extrusion at Mount St Helens in 2004–05," Nature 444 USGS Cascades Volcano Observatory CREDITS Footage & images: USGS Cascades Volcano Observatory, U.S. Forest Service, NASA (public domain), plus the Wikimedia Commons works below. "From Johnston Ridge Observatory October 2004 01" by Jmkdouglas, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/Fi... "From Johnston Ridge Observatory October 2004 12" by Jmkdouglas, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/Fi... "Mt St Helens closed sign 01" by Jmkdouglas, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/Fi... "Mt St Helens closed sign 02" by Jmkdouglas, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/Fi... "View from Johnston Ridge Observatory 01" by Jmkdouglas, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/Fi... "Mount St. Helens 8 Mar 2005 From Portland" by unknown author (Wikimedia Commons), CC BY-SA 1.0, https://commons.wikimedia.org/wiki/Fi... "Mount St. Helens Eruption March 8, 2005" by Kbomb (Wikimedia Commons), CC BY-SA 2.5, https://commons.wikimedia.org/wiki/Fi... "Mount St. Helens (2008-05-24)" by Steven Pavlov, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/Fi... "26—Glaciers and Lava Dome—Mount St. Helens 16-9 ratio, 7200x4050 pixels" by Washington State Department of Natural Resources, CC BY-SA 2.0, https://commons.wikimedia.org/wiki/Fi... "Glaciers and Lava Dome—Mount St Helens" by Washington DNR, CC BY-SA 2.0, https://commons.wikimedia.org/wiki/Fi... Music by Kevin MacLeod (incompetech.com) "Echoes of Time v2" and "Inspired" Licensed under Creative Commons: By Attribution 4.0 http://creativecommons.org/licenses/b... #MountStHelens #Volcano #Geology #Documentary #usgs