geoff,

Here is a link to realtime displays.  There are locations near you that 
you could use for a reference.  
http://earthquake.usgs.gov/earthquakes/helicorders.php

Dick


On 5/8/2011 10:21 AM, Geoffrey wrote:
> Hello World,
>
> Could Someone please look at the
> following event to confirm or deny
> that I have actually received a 2.7
> from over 400 miles away ??
>
> Just Posted to PSN events AS:
> [GVA]: 110508.095400.hs-10b.psn  [Mag2.7_UTAH_2011May08_11:32:44_UTC]
>
> I have looked at this event carefully and can not say
> it is not real.
>
> If this be so I believe what I found wrong with my preamplifier.
> Simply, Do not filter within the very first stage if using
> the geophone on the negative input. The feedback will
> not be right to the geophone if you filter the feedback.
> such a thing will decrease receiver sensitivity, or so it seems.
>
> Prosit,
> geoff
> __________________________________________________________
>
> Public Seismic Network Mailing List (PSNLIST)
>
> To leave this list email PSNLIST-REQUEST@.............. with the body 
> of the message (first line only): unsubscribe
> See http://www.seismicnet.com/maillist.html for more information.
>
>
__________________________________________________________

Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with 
the body of the message (first line only): unsubscribe
See http://www.seismicnet.com/maillist.html for more information.