United States Volcano Update; Magma is on the Move, Uplift Detected at Mt. Spurr

In Alaska, a likely intrusion of magma was detected beneath the closest volcano to the city of Anchorage. This detection occurred at the famous Mount Spurr, which has been producing an elevated level of earthquakes during the last month. Alongside these earthquakes, ground deformation was detected, meaning that this volcano which hasn't erupted since 1992 it now producing its highest level of unrest in nearly two decades. So, does this mean that it is now only a matter of time before the highly explosive Mount Spurr erupts, potentially once again dumping ash on Anchorage? How severe is its current unrest? This video will answer these two questions and discuss the ongoing situation.

Thumbnail Photo Credit: Neal, C. A., Alaska Volcano Observatory/U.S. Geological Survey, https://avo.alaska.edu/image/view/310. This image was overlaid with text, and then overlaid with GeologyHub made graphics (the image border & the GeologyHub logo).

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Sources/Citations:
[1] U.S. Geological Survey
[2] Alaska Volcano Observatory
[3] University of Alaska Fairbanks, Geophysical Institute
[4] Zhang, Ying & Li, Aibing & Hu, Hao. (2019). Crustal Structure in Alaska From Receiver Function Analysis. Geophysical Research Letters. 46. 10.1029/2018GL081011.
[5] J. Ewert, A. Diefenbach, D. Ramsey, "2018 Update to the U.S. Geological Survey National Volcanic Threat Assessment", U.S. Geological Survey, Accessed October 22, 2022. https://pubs.usgs.gov/sir/2018/5140/sir20185140.pdf

0:00 Magma Intrusion
0:35 Earthquake Activity
2:18 Mount Spurr's "Plumbing"
3:35 Comparison to Other Episodes
3:57 Opinion Based Rating

Видео United States Volcano Update; Magma is on the Move, Uplift Detected at Mt. Spurr канала GeologyHub