In a message dated 31/05/2006, rsparks@.......... writes:

I and*  ELL SHZ UW : Ellensburg, WA* recorded an event, but none of the other 
 Washington seismic stations on the web recorded it. I am wondering what it  
might be?

My recording is at  
http://www.seismicnet.com/cgi-dos/makegif.exe?/quakes/0605/
060530.165536.ebgz.psn



Hi Roger,
 
    If you look carefuly at the trace, there is hf  noise for maybe 15 sec 
before the main signal, which itself lasts for maybe 40  sec. If it had been a 
meteor, I would have expected an impulse signal without  any initial buildup 
and with little tail. This looks more like a large aircraft  to me.
 
    Regards,
 
    Chris Chapman






In a message dated 31/05/2006, rsparks@.......... writes:
<=
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=3D2>I and*=20
  ELL SHZ UW : Ellensburg, WA* recorded an event, but none of the other=20
  Washington seismic stations on the web recorded it. I am wondering what it=
=20
  might be?

My recording is at=20
  
http://www.seismicnet.com/cgi-dos/makegif.exe?/quakes/0605/060530.1655=
36.ebgz.psn


Hi Roger,
 
    If you look carefuly at the trace, there is hf=20
noise for maybe 15 sec before the main signal, which itself lasts for maybe=20=
40=20
sec. If it had been a meteor, I would have expected an impulse signal withou=
t=20
any initial buildup and with little tail. This looks more like a large aircr=
aft=20
to me.
 
    Regards,
 
    Chris Chapman