EQF: You are correct; I read your post quickly, and indeed the heating and cooling was not linked to quakes in your post. But, it is still almost certainly incorrect, except in the upper few meters (or, as a slight effect, maybe tens of meters).

HW and I are actually working on something similar for a proposal. The proposal is due Weds. It is about frozen methane below the sea floor. methane hydrate"). The heat from deep in the earth and the temperatureof the surface (not seasonal, long term) result in a geothermal gradient. That gradient in large part controls the boundary between frozen and free gas. You can see the "bottom simulating reflection" on the acoustic data (seismic reflection) that I use.

One question is how quickly that gradient adjusts when 100 m of material is removed from the sea floor by a massive landslide. The Currituck landslide on the U.S. mid Atlantic slope is thought to be 8000 years (but may not be directly dated). A bottom simulating reflection may follow scarps within the landslide. So, the upper 100s of meters likely cooled over thousands if years.

Various of us are qualified to comment on the book, but I doubt any of us are interested: I am not. This would include John, Penny, Canie, me, Roger if he has a fair amount of geology background to go with his geophysics.

Chris

The below is likely nonsense in my opinion because seasonal temperatures would average out at depth:

"That yearly or twice yearly cycle of heating and cooling causes the Earth’s crust to expand and contract, first on the surface, and then gradually farther down into the crust. That heat transfer is actually slow and occurs in waves that travel downwards for centuries and perhaps even thousands of years.

When a heat wave reaches various rock layers it causes them to expand. And that tends to cause continental bodies to become slightly larger in measured size even though the actual mass of the material remains the same."