X class solar flare and magnetic storms
Posted by heartland chris on March 13, 2011 at 11:06:25:

I only occasionally check the space weather, but just did, and see that theer was an X1 solar flare near midnight UTC March 9 (so just before March 10): link


and, magnetic storms March 11 and 12:
http://www.swpc.noaa.gov/ftpdir/plots/kp/20110312_kp.gif

Let's be clear: I think this has nothing to do with the quakes. I think the M7.2 foreshock has a lot to do with the M9.

Chris