Bob Lunsford from the American Meteor Society sent out this email today to the meteor observing mailing list:
The American Meteor Society has received 39 reports of seven separate fireball events over North America on January 19th. Two of these were widely seen events. Both of these events occurred near 21:00 EST. The first occurred over the northern Midwest and southern Canada. There is some wide scattered timing of this event and the possibility exists that this may be more than one fireball. The second occurred over the southeastern states and was seen from Florida north to North Carolina. There is good agreement for the timing plus it seems to been a bit brighter with a majority of those reporting that the peak brightness exceeded that of the full moon.
Dirk Ross from Toyko tipped me off to an increase in meteor activity on January 10th, 2011. Since that time there has been at least 7 significant fireball events in the US alone. If you pay attention to the reports, stories and witness accounts you will see that subsequent fireballs are being observed after the main event. This is a recurring theme with several of these events. There is not much support in the community for the NEO theory being the reason for the increase. There is also not a consensus that there even is an increase in activity to begin with. I believe the multiple events reported yesterday in conjunction with all of the recent big fireballs we have been having is potential evidence for a new meteor stream or some other phenomena.