PSN-L Email List Message

Subject: Time/Filtering
From: 1goss@...........
Date: Sun, 08 May 2005 23:22:10 +0000

Ok so what should I tell CERI   I am getting a lot of different numbers from the replies? Would I be ok to say with filtering I should be within +/- 50ms also will this be good enough to accurately locate a local events with 3 stations less than 50 miles apart. This will explain why I ask is a clip from a letter from Mitch.

> > Hi Bryan:
> >
> > You can just barely see this one on our next closest stations, OXF and
> > LRAL.
> > These events can be seen very well on PWLA but not on a sufficient number
> > of
> > other stations to reliably locate it.  We only publish reliably located
> > events.
> > It is a bit of an enigma where the events are actually coming from (most
> > likely south of PWLA, or perhaps local and shallow) and why.  PWLA is an
> > unusually
> > sensitive stations and records well events not seen by the rest of the
> > network.
> >
> > Center for Earthquake Research and Information (CERI)

I talked with Mitch on the phone and he just ask me how accurate my timing was,
And he may be interested in using it. I was trying to get access to live data from Pickwick He also said he would send me an executable to do that but it would have a five minute delay. He was very helpful to me and I thought it would be great to be able to contribute to their network….


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