Due to thermal expansion most materials become less dense with increasing temperature. That aside, I have often wondered if quakes or vocanic eruptions could be,in part, caused or facilitated by land tides.
The orbiting moon is a constantly applied, moving gravity wave of varying magnitude. It causes both water and land tides. As with any force applied and released, there is going to be long term mechanical breakdown. Throw in the earth directed coronal mass ejections from the sun and you have a fairly complex set of interactions. Not something easily amenable to a simple predictive model.