Inside the Cascades Volcano Observatory in Vancouver, Wash., SALI the robot weighs small crucibles holding sediment. SALI stands for Sediment Analysis Laboratory Instrument. “This is the modern legacy ...
The most destructive volcanic eruption in United States history happened less than half a century ago in Washington state. On May 18, 1980, the north side of Mount St. Helens, in southwestern ...
Four dozen earthquakes were detected at Mount St. Helens over the last month, but volcano seismologist Dr. Weston Thelen of the United States Geological Survey said it’s nothing to worry about. While ...
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