Beginning with a 7.2 quake on Wednesday, March 09, 2011 at 11:45:20 AM at epicenter, there were 21 quakes registering over 5.0 leading up to the big one.
All were very near where the big one was to take place….

Then, for almost thirteen hours, there were none… Preasure was building…. and building, … and building…..

WHAM!

Since the big one, up to this posting, there have been 240 more over 5.0…..