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Published on Mar 6, 2012
Georgia Tech Associate Professor Zhigang Peng has converted the 2011 Japanese earthquake's seismic waves into audio files. The results allow experts and general audiences to "hear" what the quake sounded like as it moved through the earth and around the globe.
This recording was taken about 90 miles from the Japanese earthquake's epicenter. There are two distinct sound waves. Both are caused by the mainshock. A "pop" is heard 90 seconds (in actual time) after the main event. This pop wasn't recorded at any other nearby stations, leading Georgia Tech Associate Professor Zhigang Peng to believe that the ground shifted immediately under the measuring station. It was the strongest reading he found -- a ground acceleration of nearly three g.