Nope. Gravity waves do not travel faster than the speed of light.
Well.............How then can gravity escape a black hole when the escape velocity must be faster than the speed of light?
How then do we not use a Doppler like shift in equations where we calculate light and movement with a shift for time, yet we calculate gravity as instantaneous?
I think there are two possible answers.
1. We don't know squat about gravity.
2. We don't know squat about gravity.
The only way I could see any influence at all is through the influence of EM radiation passing over the iron in the earth's core in just the right way. Potential effects are:
Influence on movement or liquid or spin of earth
Generation of electrical and magnetic fields that interfere with existing fields
Massive accumulation of tinfoil in isolated locations
The first could possibly, just possibly, cause enough of a shift in spin or motion of the mantle to influence tectonic action, but I believe even that notion is a hugh stretch. I just enjoy exploring the possible mechanisms to explain otherwise unrelated phenomena.