Mount Edgecumbe, dormant for 800 years, now showing activity

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Mount Edgecumbe, a dormant stratovolcano in Alaska, is showing signs of volcanic activity after 800 years of inactivity. Recent satellite imagery and computer modeling revealed that magma is rising from a depth of 12 miles, causing significant surface deformation, the fastest recorded in Alaska. Lead researcher Ronni Grapenthin from the University of Alaska Fairbanks emphasized the unusual nature of this reactivation, as dormant volcanic systems rarely exhibit such behavior.

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The discovery came from new technology the facilities employed that uses computer modeling on satellite imagery. The data showed that magma is rising in a United States volcano that’s been long dormant about 6 miles from a depth of about 12 miles.

It has caused significant surface deformation, according to researchers.

“That’s the fastest rate of volcanic deformation that we currently have in Alaska,” said the research paper’s lead author, Ronni Grapenthin, a University of Alaska Fairbanks associate professor of geodesy.
https://www.msn.com/en-us/weather/t...n-800-years-showing-signs-of-life/ar-AA13s3xt
It's also unusual.
“And while it is not uncommon for volcanoes to deform, the activity at Edgecumbe is unusual because reactivation of dormant volcanic systems is rarely observed,” he added.
 
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A little, but crucial note:

It is a stratovolcano, i.e. explodes with magma and possibly pyroclastic flows.
(in contrast to shield volcanos like Mauna Loa, or lava domes like Mount St. Helens)

1200 mi to Vancouver
600 mi to Anchorage
2.5 mi to the nearest coast
 

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