The Most Powerful Eruption of the 20th Century
January 24, 2011 | Geology.com
A little less than 100 years ago, Novarupta, a volcano in Alaska, produced what is believed to be the most powerful volcanic eruption of the 20th Century.
“People in Juneau, Alaska, about 750 miles from the volcano, heard the sound of the blast – over one hour after it occurred.”
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