By the end of the day, about 7 p.m. Pacific Standard Time, data from 16 crystals was collected and analyzed. The data, which ...

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Alaska’s Mount Spurr, a volcano about 80 miles away from the state’s largest city, will “likely” erupt in the coming weeks or ...

I was finding it hard to breathe. The air was heavy with amber plumes of sulphur dioxide, filling my gasping lungs. At 3,200m ...