When University of Washington oceanographers visited the deep-ocean Axial Volcano in late July, parts of the seafloor were still warm. The team knew to expect changes in the mile-deep volcano 300 miles off the Oregon coast. This spring, seafloor seismometers connected to shore by a new Internet cable showed that Axial Volcano, a 3,600-foot-tall underwater volcano, started shaking April 24 and shook continuously for several days. The recent visit, part of a larger cruise, was scientists’ first chance to see…
August 7, 2015