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What makes you so sure that there is not a force we don't understand that Mars exerts that causes volcanic eruptions. What if Mars exerts a force that acts on magma?, or on the core of the Earth (whatever it may be)?

Maybe it does.

But I see no reason to believe this is true, and many reasons to think it isn't. For starters, there's that little 10,000 year time difference...

You ask me to find tables with data showing how something can't be...

No, I'm asking you to inform yourself about the relative gravitational effects of Mars and the Moon on Earth, since it's clear from your posts that you don't understand this. If you aren't willing to make the effort, than you'll have to speculate on mysterious causes that move backwards in time without my help.

I basically concede your point about the Moon-Earth vs. Mars-Earth relational gravitational pull. I still think that a change in distance of 2.051 AU on Jan 1st of this year, down to a distance of .373 AU is not negligible, and that we may not yet understand nor appreciate the effect Mars has. That you and I (me especially) have no way to prove or disprove this disputed unknown force, probably means we should focus on when Yellowstone is gonna blow sky high, and not WHY. WATCHA THINK?

I really appreciate you spending time to enrich my knowledge. What I would like to do myself is a longterm correlation of all solar system bodies to earthquakes and eruptions on Earth. I have a feeling this is already being done, and if there was some direct correlation, that it would already be a part of scientific knowledge. But, you never know......