Though it last erupted in 2015, it has a history of more than 50 eruptions over the past 800 years. What’s causing all this ...

Mount Spurr, located about 75 miles West of Anchorage, has been acting up in recent weeks, prompting officials at the U.S.

Though it last erupted in 2015, it has a history of more than 50 eruptions over the past 800 years. What’s causing all this volcanic activity? It's called the Ring of Fire. The Ring of Fire and ...