Hello All,

I finally think I have clearly recorded a reflected wave front.  It 
happened this morning from the Honshu Quake where the P and pP wave 
fronts seem to be clearly recorded.   My recording can be found at 
http://www.seismicnet.com/cgi-dos/makegif.exe?/quakes/1003/100313.125644.ebgzx.psn.  
If I recorded the pP wave previously, I certainly did not recognize it.

If I read the reference at http://en.wikipedia.org/wiki/Seismic_wave  
correctly, the  pP wave can only be recorded at surface 
arrival/reflection points so station location is critical to visibility.

Just the luck of the draw.

Roger


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