I've been through a few quakes. 6.4 is not so bad. 7.1 is bad - almost ten times as bad. 'Centered on the city' is very intriguing and ominous. Seismic disturbances can be caused by many things, not just earthquakes, and a seismic disturbance centered on a military secret research facility does not seem plausibly coincidental, particularly when news coverage is nonexistent. That sounds like a problem.

I'd call HAARP and ask what they know, but they're closed.

Thanks!

Edit: "Science Correspondent Jacob Margolis of Pasadena-based KPCC said, “There was 11.2 times more energy released by the magnitude 7.1 than the magnitude 6.4 quake the day before.”