Don:

Had 2 very strong frequencies from the MPM or Manuel Prospect Mine BHZ broadband for the 3:34 am quake. The two frequencies were 6.72 and 7.02 hz both quite strong. This I've not seen before, in looking at the typical waterfall dfft. The region to the east showed a 5.5 hz signal resonance, so what Frank Condon picked up is definitely there as the "ring" from this quake.