I may be out on a limb here, bind I do not see much difference atoll, between MAGNATISM & GRAVITY...We all have metal in our bodies, the earth has an iron core, anong with pretty much any planet. You can find metal , however small, in almost everything on earth, and because the core rotates, it creates a magnetic field...There was a man in the U.S.A. who managed to move his own house(I think it was), that had huge parts to move around, and he was totally into magnatism. And whinesses say that he managed to levitate huge pieces of his home. I do not doubt this, and I figure he must have found a way to turn off a magnetic force from the earth to do this... There are all kinds of stories of people finding a way to defeat gravity, so I have to speculate that it is madnatism that creates gravity...
Just imagine takeing a ride along a river of magma, and comeing close or interfereing with the magnetic field or earth and it's core, then as the field changes, it either pulls in magma or pushes it away. And I can easily say this creates volcano's perhaps. Earthquakes(???) , but just imagine a magnet being played around with, by both negitive and positive fields...I can certainly see this changeing landforms and whatever else that has metal(magnetic) in it... Magnatism is energy in a way, and I don't know how gravity took a big step away from being magnetics to begin with. I have to learn more about this anyway to fully understand the difference in both, if there is even a difference atoll...
