Mount St. Helens
30 Years Since the May 18, 1980, Eruption

• On that fateful day, Mount St. Helens Volcano in Washington exploded violently after 2 months of intense earthquake activity and intermittent, relatively weak eruptions, causing the worst volcanic disaster in the recorded history the United States. The cataclysmic eruption and related events May 18 rank among the most significant geologic events in the United States during the 20th century.

• Mount St. Helens: A 30-Year Legacy of Volcanism -- Vallance, et.al., 2010, Reprint, EOS Transactions, American Geophysical Union, vol.91, no.19, May 11, 2010, p.169-170.
• 30 Cool Facts about Mount St. Helens -- poster
• MP4 "video", 1980 eruption -- LARGE, 60M, 7 minutes
• MP4 "video", 30 Years -- LARGE, 50M, 6 minutes 30 seconds

• Daily Log of Events Leading to the May 18, 1980 Eruption -- covering March 15 through May 17, 1980
• Mount St. Helens, Past, Present, and Future
• Mount St. Helens Photo Archives
• Professional Paper 1250: The 1980 Eruptions of Mount St. Helens, Washington
• Professional Paper 1750: A Volcano Rekindled: The Renewed Eruption of Mount St. Helens, 2004-2006

• Mount St. Helens -- From the 1980 Eruption to 2000
• Mount St. Helens Erupts Again -- Activity from September 2004 through March 2005
• The Science Legacy of Mount St. Helens -- [.doc Format]

• May 8, 2010, Cascade Volcano Observatory Open House !!! -- [PDF Format]

• Cowlitz County Tourism Bureau, Mount St. Helens 30th Anniversary -- [Link]

• Mount St. Helens Institute, 30th Anniversary Events -- [Link]

• Mount St. Helens National Volcanic Monument -- [Link]

• Mount St. Helens May 18, 1980 Menu
• Mount St. Helens 2004-2006 Menu
• Mount St. Helens General Menu