The AVO said an eruption was "likely, but not certain, to occur within the next few weeks or months." Why It Matters. Mount ...

The volcano began the 15th episode of its current eruption at around 10:35 a.m. Wednesday with lava fountains reaching a staggering 1,000 feet.

Mount Spurr has been showing signs of an eruption since last year, but scientists think one is even more imminent.