An undersea volcano erupts off the coast of Tonga, sending plumes of steam, ash and smoke up to 100 meters into the air, on March 18, 2009, off the coast of Nuku'Alofa, Tonga. (Dana Stephenson/Getty Images)
An undersea volcano erupts about 10 kilometers off the Tongatapu coast of Tonga sending plumes of steam and smoke hundreds of meters into the air. (LOTHAR SLABON/AFP/Getty Images)









