A supervolcano is like a regular volcano on steroids. If it erupts, it would kill 100,000 people in an instant. And expel over a thousand times more material than a regular volcano. It would send so ...

Is it going to blow — or blow over? Seismic activity levels on Alaska’s Mount Spurr soared earlier this week, sparking fear that an eruption could be on the horizon. “Earthquake activity beneath Mount ...