Hello All, especially those of you in Northern California.  The alarm went
off on my system a few minutes ago, and the signal on the screen was very
unusual.  It was a decent sized sine wave, about 20 second period.  I
thought it might be local, caused by heavy construction on 101 nearby, but
most of the Berkeley network instruments at
http://www.ncedc.org/bdsn/quicklook.html
   show the same thing.
To my eye, this doesn't look like a normal EQ signal.  Or is it just me?
 
The signal is still ringing down, after a good 25 minutes.
 
What do you all think?
 
Cheers,
 
 
    Keith
 
Keith Payea
Bryant Labs
kpayea@..............
www.bryantlabs.net  
(707) 566-8935
 






Hello =
All,=20
especially those of you in Northern California.  The alarm went off =
on my=20
system a few minutes ago, and the signal on the screen was very =
unusual. =20
It was a decent sized sine wave, about 20 second period.  I thought =
it=20
might be local, caused by heavy construction on 101 nearby, but most of =
the=20
Berkeley network instruments at http://www.nce=
dc.org/bdsn/quicklook.html =20
show the same thing.  To my eye, this doesn't look like a normal EQ =

signal.  Or is it just me?
 
The =
signal is still=20
ringing down, after a good 25 minutes.
 
What =
do you all=20
think?
 
Cheers,
 
 
    Keith
 
Keith=20
Payea
Bryant Labs
kpayea@..............
www.bryantlabs.net
(707)=20
566-8935