[bd476]

Darksheare wrote: "...I ran it through Winamps little toys, and the sound is quite odd, and eerily uniform forwards and backwards. But the wave form of the sound is irregular despite the regular uniformity..."

Thanks for confirming that, Darksheare. My computer is not working very well. Not sure if it's possible, but it would be cool to save the file.

[Darksheare]

I saved it, and I have it on my machine, ran it through my anti-virus three times before even playing it.
I even slowed the play speed down using the Nullsoft Signal Processing Studio DSP plugin, and Justins Simple Pitch and Tempo script to check it out.
When it is slowed down to half speed, the sound is quite interesting.
It isn't as noticably loud, but it is a long rending rumble.
And they said they speed the recording up a bit.
I'm not a signal analyst, but the quake had neat characteristics since it ruptured 750 miles of faultline.
(Or so I read. What you're hearing in the recording if true is 750 miles worth of faultline moving.)