I posted my response to Roger before your note appeared on my board screen.

The answer to your question is that the signals that I work with are indicating that the fault zone strain condition somewhere has reached that critical state. Ordinary Ear Tones are indicating that in my opinion.

This is not even a matter of debate in my opinion. I have so much data available which shows that this is what is happening that you don’t even need to do a statistical analysis on it. The links should be obvious to anyone. But as with many life threatening problems, the one and only major problem here is the ever present lack of interest in the subject matter.