Wow after looking at your site Pete I went and checked my long period AT1 in Aptos and can see I also recorded that event... (and I thought my system was not working that well.) I'm at Cabrillo College teaching a Social Justice Research class at the moment but when I get home I'll check and upload my data. I bet that Jan and Larry also recorded these events.
Steve Hammond PSN San Jose, Aptos, CA

http://pw2.netcom.com/~shammon1/recent.htm


>Loud and clear in San Jose, CA.
>It's on my website right now (www(dot)rowelabs(dot)com
>Enjoy
>Pete


--- On Fri, 4/18/08, Thomas Dick  wrote:

> From: Thomas Dick 
> Subject: Re: quake
> To: psn-l@..............
> Date: Friday, April 18, 2008, 9:08 AM
> > There just was an aftershock now, emsc says it is M
> 4.5. See here,
> >
> http://www.emsc-csem.org/index.php?page=current&sub=detail&id=84013
> (might
> > be outdated soon)
> >
> >Here in Indiana, before this last quake the FFT for 20
> seconds just before
> >dropped to below one from over 10 before the first
> quake in the frequencies
> >of .06 to .3 Hz
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