The recent violent volcanic eruption in is one of the strongest ever recorded, according to a new study, and future eruptions could be possible in the area.Its explosive yield has been put at anything from 5 million to 30 million tons of TNT equivalent by NASA scientists who've studied preliminary data from the January 15 blast. The eruption of Mount St Helens in Washington state in 1980 produced the same yield as around 24 million tons of exploding TNT.
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