The file has been updated with the Z channel.

Rolando Benítez
Fraijanes, Guatemala


> 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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>
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