Axial Seamount, a massive underwater volcano located nearly 300 miles off the Oregon coast, is showing signs of an imminent eruption. This 3,600-foot-tall volcano, which spans 1.25 miles across ...
Thanks to a dense array of sensors on the volcano’s summit and flanks, scientists know that Axial Seamount has been swelling with magma and getting taller, a sign that it’s ready to go off.