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Increased Seismic Activity at Washington's Mount Adams Sparks Scientific Monitoring

Despite a rise in small earthquakes, experts confirm no immediate eruption threat at Mount Adams.

  • Mount Adams experienced six minor earthquakes in September, the highest monthly total since monitoring began in 1982.
  • The U.S. Geological Survey and Cascades Volcano Observatory are installing temporary seismic stations to better track activity.
  • Current monitoring indicates no signs of an imminent eruption, with no changes in ground deformation or gas emissions.
  • Mount Adams is classified as a 'high threat' volcano due to potential lahar flows, but it is not known for explosive eruptions.
  • The volcano is the second-tallest in Washington and part of a larger volcanic field with over 120 smaller volcanoes.
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