EDITOR'S NOTE: This is a joint release of Brown University, Carnegie Institution of ¿ªÐÄ¹í´«Ã½ D.C., National Science Foundation, Scripps Institution of Oceanography, University of Colorado, University of Oregon, University of ¿ªÐÄ¹í´«Ã½, and Woods Hole Oceanographic Institution. Visuals are available (see end of release). Under the South Pacific, a new picture emerges of Earth's most volcanically active area.