EQF,

I would say it would be very interesting if indentifiable groups of people all have eartones at once for a coming regional quake over and over. For instance, there may be a sensitive group hearing eartones for quakes in the Kurils. If you can log those, that would go along way in understanding if the phenomenon is real or not. Sounds like this is what you have in mind. I have had eartones before Baja quakes, but not all Baja quakes. Good luck with this. I'll let you know along with Petra when I get them. (eartones)

Glen