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Gravity Satellite Felt Japan Quake from Space

A European Space Agency satellite circling Earth was able to detect the massive 2011 earthquake that ravaged Japan, killing nearly 16,000 people and causing massive destruction, a new study said.

"The atmospheric infrasounds following the great Tohoku earthquake ... induced variations of air density and vertical acceleration of the GOCE platform," said a report published in the journal Geophysical Research Letters.

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