Hi Jon,  This helped me too when someone pointed out that Winquake had this 
feature.  I am using a old computer with no internet connection, so I must 
keep an eye on the clock.  It will lose about 10 secs a day.  I do try to 
keep it accurate but sometimes the trace shows evidence that the clock is 
wrong.  This Winquake feature is very nice.  Ted


----- Original Message ----- 
From: "Jón Frímann" 
To: 
Sent: Saturday, January 27, 2007 12:59 PM
Subject: Re: Clock drift ?


> Hi Ted
>
> Yes, I am using WinQuake. It appears that I need to add 10 seconds to
> the plots. Then I get accurate location for the P and S wave. I have to
> do that with all of this weeks earthquakes, about 19 of them.
>
> Thanks and Regards.
> -- 
> Jón Frímann
> http://www.jonfr.com
> http://www.simnet.is/jonfr500/earthquake/
>
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