Quakes normally occur around one of the 3 plate tectonic movement
I think the inference that could be made is :
2. Earth's orbit has a greater distance between foci than the comet's orbit
both earth and comet has sun as their Foci, and from the diagram, the distance between earth and sun is far greater
Right as the Han Dynasty began, Liu Bang took over. Then, after him, was Han Wuidi!
I think it might be chemical