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'Restless' supervolcano 'could swallow whole US state' as eruption fears grow
The Long Valley Caldera, a massive supervolcano in California, has been causing unease among researchers due to its potential ...
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Supervolcano 'could swallow whole US state' as eruption fears grow
At a sprawling 20 miles long, 11 miles wide and 3,000 feet deep the Long Valley Caldera, California ... with a classification of VEI 8 on the eruption scale. The huge size of the volcano has ...