For the entire life of the Large Interferometric Gravitational Observatory, just down the road here a ways and founded and directed by my old teachers at Caltech, I said the effort was a complete boondoggle, since the sensitivity of measurement required was so many orders of magnitude above the noise of the constantly-in-motion geosphere.
That is, I claimed the earthquakes large small and perhaps of a seismic signature we are not yet aware of, would wipe out the measurement of the motion of one ten-thousandth the diameter of a proton, at a distance of a couple of kilometers.
Erm. They measured, two LIGO installations simultaneously, gravitational waves. After 14 years of looking.