Freaky sounds coming from the Ocean

http://gizmodo.com/we-finally-know-what-s-causing-those-weird-metallic-sou-1790188434?utm_source=gizmodo_newsletter&utm_medium=email&utm_campaign=2016-12-16

Rico says he still, fifty years later, hears Mrs. Tate, his science teacher from Louisiana, saying "Marianas Trench"...