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St. Helens

U.S. Geological Survey scientists make precision leveling measurements in the crater of Mount St. Helens in February 1982 with the steaming lava dome in the background. Repeated measurement of deformation in the crater was one of several methods used by scientists to successfully predict future eruptions of Mount St. Helens.

Type/Process: Volcano Monitoring
Volcanic Status: Historical
Image Number: 029-024
Photographer: Terry Leighley, 1982 (U.S. Geological Survey)
Summit Elevation: 2549 meters
Latitude/Longitude: 46.20 N / 122.18 W
Timeframe: Last known eruption 1964 or later
Region: Canada and Western USA

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