Oh sure, lots pf people have noticed after the His-Story channel primed them to expect to see that. When we go out expecting to observe something that happens routinely, it doesn’t take too long to be rewarded. That’s the mechanism of human thinking that conspiracy theorists and junk scientists rely on to sell their theories.
But the real scientists at the US Coast and Geodetic Survey haven’t noticed it, because they rely on reports from seismographs all over the world and not the His-Story channel’s sensationalism. They note that there are an average of about 1615 earthquakes of magnitude 5 or greater around the world each year. An earthquake has to be that big to ensure that there will be a seismograph somewhere close enough to its location to record it. The table for Worldwide earthquakes on the link above shows that the average is holding pretty steady. Some years have lass. Some have more. But there has been no massive, sudden change.
That is not to say it can’t happen. The tectonic plate motion that triggers earthquake activity is a vastly complex dynamical system with lost of strange attractors diving it. Perturbations are more than possible, the are predictable. What unfortunately isn’t predictable yet is when the perturbations will occur..