Geoff,

I believe that the only problem is that the amplitude of tilt oscillations 
from quakes would be rather small, and they are only associated with some 
of the phases.  But it should definitely be worth a try.

Regards,
Brett

At 01:21 PM 2/24/2008 -0700, you wrote:
>WHAT WOULD be wrong with building a
>device that is fixed in a level
>fashion and measure only tilt since
>distortions stress and strain in the earth
>will manifest itself as a tilt ?
>
>It may be easier and cheaper to do this ?
>
>regards;
>geoff


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