Are you certain that it wasn't merely the death rattle of Seattle's soul as it collapses under the vile weight of the Marxist leviathan?
(((snicker)))))
I assume that you've tried at least a couple of different search engines with obvious keyword phrases such as "earthquake October 2007" "washington earthquake" "washington seismic activity" etc. etc
The U of W has a seismic lab with the traditional scrolling papers and wiggling pens that the hair-in-a-can 'journalists' rush to at the slightest tremor....they would probably know :-)
LOL!
I followed all the links on Drudge’s Quake Sheet.
Nothing but a quake in Seattle this afternoon in
registering the low 3’s. Nothing at 6:16am.