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davenn
#2
Mar11-12, 08:44 PM
Sci Advisor
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Hey Steve,

This has been done for some time. Even a number of my USA amateur seismology friends have recorded the vibrations of the ground caused by the nearby passing of tornadoes.
These's also been extensive professional work done using microphones in arrays to pick up ground noise generated by tornadoes.
This I recall may have had something to do with trialing an early warning system

Dave