How Icebergs Produce Ocean Noise

A video illustrating how icebergs create underwater ocean noise. A study finds fracturing icebergs can be as loud as supertankers. The audio is very low frequency; if you cannot hear it you may need to increase your volume.
credit : Robert Dziak, Cooperative Institute for Marine Resources Studies, Oregon State University Hatfield Marine Science Center, NOAA/Pacific Marine Environmental Laboratory