Earth's 'Hum' Helps Probe Planet's Interior

Seismic waves help produce images in a way similar to medical imaging

USGS

The Earth's interior.

 

By Charles Q. Choi

OurAmazingPlanet

updated 11/23/2012 12:29:40 PM ET

 

The global "hum" of the Earth is now helping scientists probe the planet's deep interior, a group of researchers say. 

Since this hum — called seismic noise, which is generated by sources such as storm-driven ocean waves — is detectable everywhere on Earth, it could help scientists analyze the innards of the planet worldwide, investigators added in a new study detailed in the Nov. 23 issue of the journal Science.

More - Link >>> http://www.msnbc.msn.com/id/49940778/ns/technology_and_science-science/#.UK_l9VF5Fic

Sources: OurAmazingPlanet.com , NBC News.

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