Posted by Skywise on May 10, 2011 at 12:20:56:
Yes, there is a solid earth tide. But an important point you are missing is that the net effect ACROSS the fault is nearly null. The solid tide on one side is the same as on the other side. Within a few hundred miles either side of a fault there is little tidal gradient. This is easy to realize simply using a little thought experiment and imagining force vectors. Vector math is very useful. The result is that there is little change in the stress field in the fault, therefore no reason to expect an effect. "I have no idea [emphasis mine] what the true ratio might be, Solid Earth Tide Related Triggering versus Ocean Tide Triggering. But in my probability equations I give the Tide Generating Force that is related to the Solid Earth Tide a higher weight or importance than Ocean Tide forces just based on rough evaluations of my data over the years." So by your own admission, you do not know something but make an assumption anyway based on what? "rough evaluations"? Can we see these "rough evaluations" so we can judge if your assumption is a good one? Brian
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