Was the VA Earthquake an underground nuclear test?

I have seen several articles supposing it was, perhaps even related to HAARP.  This guy is an obvious conspiratorial theorist but I think has a few compelling points, the main ones being that the seismography does not look typical and the timing before Irene seems to be perfect to allow people to cope and the news to cover but not dwell on the earthquake too deeply.  IMO it is worth at least passing consideration.

This was interesting though not entirely accurate:

http://theintelhub.com/2011/08/28/6-strange-anomalies-with-the-virginia-earthquake/

This seems to say that his understanding of P and S-waves is a little off but I don’t think nullifies his premise entirely:

https://www.llnl.gov/str/Walter.html