Scientist says: Oregon’s Three Sister Volcanos are rising most likely due to magma 4 miles underground

Important Takeaways:

  • Land around Oregon’s Three Sisters volcanoes is rising faster than usual, scientists say
  • An uplift of about an inch in the ground was detected roughly 3 miles west of South Sister, according to researchers from the Cascades Volcano Observatory
  • According to the USGS, Oregon and Washington, with more than 25 active volcanoes, comprise one of the most volcanically active regions in the country.
  • The uplift in the Three Sisters area is most likely caused by magma 4 miles underground. Bursts of small earthquakes are common in the area and throughout the Cascade range, which is essentially a chain of active volcanoes
  • The region has experienced an uplift of about 12 inches over the past 25 years.

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