_1496066397.jpg "Alaskan volcano erupts, sending ash 35,000 feet into air")
"An observer on Unalaska Island reported seeing a large white-gray mushroom cloud form over Bogoslof, with ash fallout to the west," the agency reported.
Officials raised the aviation alert in the area to a code red, but downgraded it to an orange after the eruption subsided.
"We actually went to color code red this afternoon because of numerous lightning detections and increased seismic signals," Jeffrey Freymueller of the Geophysical Institute at the University of Alaska, Fairbanks told CNN. "Lightning in the Aleutians is mostly due to volcanic plumes, as the meteorological conditions for lightning are not common."
An eruption earlier this year changed the shape and coastline of Bogoslof Island, and eruptions since 2015 have caused its landmass to triple in size, CNN reported.
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