On May 18, 1980 at 8:32 a.m. PST, Mount St. Helens erupted causing the north face of the mountain to collapse in a massive rock debris avalanche that released pressurized gases from within the volcano. That gas created a tremendous explosion that ripped through the avalanche and developed into a stone-filled wind that swept over ridges and toppled trees causing nearly 150 square miles of forest to be blown over or left dead and standing, says the website for the Mount St. Helens National Volcanic Monument.
Such is the power of Mount St. Helens that in 1982 President Ronald Reagan and the Congress created the 110,000-acre National Volcanic Monument that is focused on research, recreation and education. Overseen by the U.S. Forest Service, the monument includes a website that features a Volcano Cam which provides near real-time images of the mountain taken from the nearby Johnston Ridge Observatory, and videos of the 1980 eruption.
There is also a “Teacher's Corner” which provides links to resources for students and teachers, and a section on recreation that provides information on areas the mountain that are open to the public and how those areas can be accessed.
For making the volcano accessible online, and as a conduit to visit the mountain, the Mount St. Helens National Volcanic Monument website is Government Video’s Website of the Week.
Government Video Website of the Week: TeacherDirect
The TeacherDirect website is a gateway for teachers to signup to receive information and resources