PSN-L Email List Message

Subject: Re[2]: seismograph polarity
From: "angel@chiriqui" angel@............
Date: Sun, 15 Jul 2001 13:31:54 -0500

Thanks Karl,

Now that I know that I have that, what would folks guess is
the effect of taping a N/S geophone from the north.


I have calibrated my geophone and I'm pretty sure that the ground
moves 2.22 nanometeres for every count.

Sunday, July 15, 2001, 1:17:22 PM, you wrote:

KC> Angel --

KC> I got the following from Edward Cranswick on July 30, 1997.

KC> Karl

>>   Ground Motion: Down to Up, i.e., upward, is positive.
>>   Ground Motion: South to North, i.e., towards the North, is postive.
>>   Ground Motion: West to East, i.e., towards the East, is postive.


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Larry Cochrane <cochrane@..............>