Washington State University Vancouver will present the final seminar April 25 in its series on some of the lessons learned since March 1980, when a series of small earthquakes signaled the reawakening of Mount St. Helens, to its catastrophic eruption two months later.
“Something Extraordinary is Happening in the Crater at Mount St. Helens: Lessons from the 1980-1986 and 2004-2005 Dome-Building Eruptions” will be presented at 7 p.m. by geologist Dan Dzurisin of the U. S. Geological Survey, Cascades Volcano Observatory, Vancouver. The seminar will be in Student Services Building, Room 110, and is free and open to the public.
As if to commemorate the 25th anniversary of its 1980 activity, Mount St. Helens reawakened in September 2004 and entered another extended period of dome building. This time the growth has been continuous and rapid, resulting in a new dome on the south crater floor. As a result, scientists are gaining new insights into how Mount St. Helens works and what the future holds for the Pacific Northwest’s youngest and most dynamic volcano.
Dzurisin has been studying ground deformation and related topics at Mount St. Helens since 1980. He has a doctorate in planetary geology from the California Institute of Technology and a bachelor’s degree in physics from the University of Notre Dame.
Mount St. Helens’ May 18, 1980 eruption flattened more than 150 square miles of surrounding forest. Over the last 25 years the area has proven a remarkable laboratory for the study of earth processes and their influence on ecosystems surrounding the volcano.
For the latest information about upcoming events, visit the Mount St. Helens 25th Anniversary Web page at http://www.fs.fed.us/gpnf/mshnvm/25th-anniversary/index.shtml.
WSU Vancouver is located at 14204 N.E. Salmon Creek Ave., east of the 134th Street exit from either I-5 or I-205. Parking rules are enforced 7 a.m. to 7 p.m. Monday through Friday. Parking is available in the blue lot for $1.75 or at parking meters.
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