Interesting commentary on some of those BBC videos. Apparently most of the destruction was caused by the force of the sonic boom as the meteor passed overhead.
The flash is the meteor literally exploding from overheating and overpressure; I'd suspect that's the cause of any damage, rather than a simple sonic boom (the meteor was still at a very high altitude at the time.
http://www.bbc.co.uk/news/world-europe-21468116
Commentator says most injuries were from shattering glass. People ran to the window to look at the meteor, then the windows shattered.
Reminds me of the beginning of the “Day of the Triffids” movie.