Space

Study: 2011 Japan Earthquake Could Be Heard From Space

Even if no one was around to hear it

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Earthquakes rattle the ground, vibrating Earth's surface like the skin of a drum and sending low-frequency sound waves into the sky.

The tremendous shaking from Japan's Tohoku earthquake in 2011, the fourth-biggest temblor on record, was so powerful the sound traveled into space, a new study reports.

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