Several small earthquakes shook the area around Bogoslof Volcano on Saturday, prompting scientists to raise its alert level to an intermediate “watch.”
Bogoslof hasn’t erupted in over a month, but officials with the Alaska Volcano Observatory say seismic activity over the weekend has increased the likelihood of another explosion.
Before going quiet last month, the eastern Aleutian volcano had erupted 37 times since mid-December.
Scientists say they’re keeping a close eye on Bogoslof, because it’s hard to tell when an eruption is really over.
