An underwater volcano off the coast of the United States could be ready to erupt. The vast submarine volcano, located around 300 miles from the coast of Oregon, has recently showed signs of activity meaning it could be ready to blow.

Scientists, who have been monitoring the volcano known as Axial Seamount for decades, have reported recent activity include earthquakes. Bill Chadwick, a volcanologist and research professor at Oregon State University, said it could erupt between now and the end of 2025.