from reddit:
Astronomer here! Probably too late for the party on this one, but this just looks like a particularly bright fireball meteor. These are actually not as rare as you would think- NASA has a network in the USA to look for them, for example.
Specifically, if I had to bet, today is the peak of the Leonid meteor shower. The Leonids are a strange beast of a shower whereby some years you get storms that produce thousands of meteors due to particularly dense debris, some years are years were nothing happens out of the ordinary. This was supposed to be one of the ordinary years (~10/hour from that- you get one meteor a minute just from normal debris) but that doesn't mean you can have larger chunks as part of that 10/hour.