Hi all;

I have in my office a device which emits an audible tone at certain times.

I have discovered that these tones correlate perfectly with every mag 7+ quake in the world. Whenever there is such a quake my device will have produced it's tone on that day, without exception.

More work needs to be done as not all tones correspond to a mag 7+ but nearly all will match up with mag 6+ quakes.

Roger