Cascades Volcano Observatory

General Information Product 75
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Washington's Mount St. Helens volcano reawakens explosively on October 1, 2004, after 18 years of quiescence. Scientists at the U.S. Geological Survey's Cascades Volcano Observatory (CVO) study and observe Mount St. Helens and other volcanoes of the Cascade Range in Washington, Oregon, and northern California that hold potential for future eruptions. CVO is one of five USGS Volcano Hazards Program observatories that monitor U.S. volcanoes for science and public safety. Learn more about Mount St. Helens and CVO at
Publication type Report
Publication Subtype USGS Numbered Series
Title Cascades Volcano Observatory
Series title General Information Product
Series number 75
DOI 10.3133/gip75
Edition Version 1.1, Revised 2009
Year Published 2008
Language ENGLISH
Publisher Geological Survey (U.S.)
Contributing office(s) Volcano Hazards Program
Description Postcard: 2 Sided
Google Analytic Metrics Metrics page
Additional publication details