Seismic activity detector?
This is kinda strange but here it is. John B. will show video corasponding to gragh I pulled PNSN webicorder (seismic activity) see picture
This is kinda strange but here it is. John B. will show video corasponding to gragh I pulled PNSN webicorder (seismic activity) see picture
![Suprised Smiley](http://www.energeticforum.com/core/images/smilies/surprise.gif)
![Suprised Smiley](http://www.energeticforum.com/core/images/smilies/surprise.gif)
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