[Calpernia]

When DC comes back online, she is very savy on earthquakes. She may lend some insight to this.

[rickylc]

Very good!!

There are very strange things going on in the Yellowstone area.
There is a big gas disaster drill scheduled for the area on March 21.
The largest disaster drill ever held in Yellowstone county and aimed specifically towards toxic gasses.

I've found an older article on the mystery quake that DOES put it in the Yellowstone area.

Here's the link:

Large Yellowstone Area Quake Goes Unreported...02/07/04

[Domestic Church]

Hi Cal, I'm hardly savvy on anything, especially physical geology, lol. I am fascinated with quakes/geology much as kids are fascinated by dinosaurs. There are some on FR who are very savvy in all thing geologic though and hopefully they will edify us(Blam, here's your cue to pull in your fellow geologic freeper brains,lol.)

I did note that cluster that comes out of southern California and sandwiches Granny down there in Kingsman. I also noted the cluster up near the Seattle area which is a potential problem and the two little quakes around New Madrid. This continual clustering has to be raising some eyebrows but I would bet those geologists will really start flinching if/when the clusters suddenly stop and all seems quiet.

And for all we know it was a mindshaft collapse though 6.5 sounds too high for that (but what do I know,lol, maybe if the ghost of Tesla was haunting that vicinity...)