On 4/12/2013 6:53 PM, Jón Frímann wrote:
> Hello all,
>
> Tornadoes do not have any seismic signature. It is just noise like any
> other wind. If you want to properly record the noise from a tornado you
> need to get a infrasound mesurement instrument.
>
> Best regards,
> Jón Frímann.
>
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I think this is not entirely true.
I think if you can detect periods around one minute
at whatever frequency you may be on the right track
to seeing a tornado through ground noise.
Noise is not just noise if you know all the sources of the noise.


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