The Axial Seamount is one of the most active but least well-known volcanoes in the Pacific and all signs point to it erupting very soon—for the first time in a decade.

A recent study found increased seismicity and swelling at Axial Seamount, suggesting an eruption could occur sometime this year.

A scientist has explained what happens during an underwater volcanic eruption looks like as Axial Seamount on the Pacific Coast set to erupt imminently.