Heard this on the radio earlier. I have a few questions:

Does every earthquake make the earth denser (i.e., same mass but slightly smaller, packed into a smaller tighter space)? Are there no phenomena that might loosen the globe back up ~ in other words, are the days inevitably getting shorter, with no potential for reversal?

What about the matter that's been shot off into space for the past half-century? We're told that there is LOTS of "space junk" orbiting around the globe. I would think that the loss of all that crap ~ entire spacecraft in a few cases ~ would reduce the size of the planet (by reducing its mass) at least as much as a single quake would shrink the globe by compacting its substance without reducing its mass at al.

And then, I believe I have ONE answer: that millionth-of-a-second reduction in time is NOT measurable, at least not yet, not with currently available measurement tools. This theory has been postulated on the basis of calculation, not measurement.