From: Randall Pratt 
To: psnlist 
Sent: Thu, 11 Apr 2013 16:42
Subject: Re: Seismic Signature of Tornadoes

Hi Randy,

     Have you not read=20
http://alabamaquake.com/reports.html#Tornado_Seismic_Signature ?
     It does also look as if an Infrasound detector system could be=20
useful.

    Regards,

     Chris
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