PSN-L Email List Message

Subject: Re: Un Regards to: 100328.213800.rb1.psn
From: "Geoffrey" gmvoeth@...........
Date: Mon, 29 Mar 2010 16:46:46 -0700


Then i understand that with three channels you can
with a single station get distance, magnitude and direction as
well as focal depth ??

For best results Id hazard a guess that
all data must be taken in synchronous fashion
meaning all three channels are sampled simultaneous at the very same rate.

And, is there any program to
take such data and recreate a three dimensional picture
showing angles and the absolute magnitude.
There really is motion only in one direction
but it seems you must have three different
channels ro recreate that absolute motion in
whatever direction ???

It seems to me that to recreate reality all known physical dimensions must be recorded
simultaneously.

You know what this says about everyday life ???.
One rarely sees or senses reality.
  :-)
Thanks for your reply.
It opens my mind a bit.

Best Regards,
geoff




----- Original Message ----- 
From: "Bob Hancock" 
To: 
Sent: Sunday, March 28, 2010 10:37 PM
Subject: Re: Un Regards to: 100328.213800.rb1.psn


Hi Geoff -

With the two horizontal channels,and the initial direction of the P wave on each channel, you can achieve a great circle course 
line, but you will not know which side of the receiving station that the event occurred.  To do that you also need the initial 
direction of the P wave on the vertical channel.

Bob Hancock
Three Points, AZ


On Mar 28, 2010, at 10:22 PM, Geoffrey wrote:

> Wouldn't it be possible to somehow derive a bearing
> or angle of incidence somehow relating to the
> differences between the N/S and the E/W signals
> in this EVENT posted to PSN database ?
>
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