Wave-thumping ‘weather bomb’ storms send elusive S waves through Earth | Science News

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Wave-thumping ‘weather bomb’ storms send elusive S waves through Earth

High-tech detectors can now pick up weak tremors, help probe planet’s depths

By
2:00pm, August 25, 2016
Scotland storm

WEATHER BOMB  A Japanese seismic network detected a rare type of deep-Earth tremor originating from a swirling North Atlantic storm (seen here slamming Scotland’s coast) in December 2014.

How the seafloor quivers under an intense storm called a “weather bomb” could help reveal Earth’s innermost secrets.

Using a network of seismic sensors, researchers in Japan detected a rare type of deep-Earth tremor originating from a rapidly strengthening cyclone over the North Atlantic Ocean. Tracking how these newfound shakes ripple through the globe will help geoscientists map the materials that make up the planet’s depths, the researchers report August 26 in Science.

“We’re potentially getting a suite of new seismic source locations that can be used to investigate the interior of the Earth,” says Peter Bromirski, a geophysical oceanographer at the Scripps Institution of Oceanography in La Jolla, Calif., who wrote a commentary on the new research in the same

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