If there is anything that is totally diagnostic of fluid flow earthquakes, it's the occurrence of a couplet.
That's two identical earthquakes. Now, you would actually have to look at the seismograms, but that's the job of the bUS-GuS. I was trying to think of a cute name for them after the twerky lady sang the famous song. It's better than key-lee. :)
The 'b' stands for 'big', as in Big Ugly Bureaucracy (bub). You should have seen how hard I was on Nasa, one of the worst bubs. But they reformed because they were killing people. In fact, that's the only way a bub can ever reform itself, when it actually starts to kill people.
Bus-gus can never reform. Too bad.