Scientists at the National Oceanic and Atmospheric Administration Vents Program at Pacific Marine Environmental Laboratory and Oregon State University didn't feel the massive earthquake that struck off Japan on March 11. But they did hear it.
An underwater microphone located near the Aleutian Islands of Alaska, 900 miles from the quake epicenter, captured the sound of the disaster on tape, and a portion of the recording has now been put up on YouTube.
The recording has been sped up 16 times. First comes the roar of the earthquake sounds "propagating through the earth's crust," then you hear a second roar of the sounds "propagating through the ocean."