The videos of this are amazing! Most likely unrelated to the asteroid today, since it's believed they came from different locations.
It's estimated that the meteor exploded with the equivalent yield of over 100 kt (100,000 tons) of TNT. That's about the size of a small strategic nuclear weapons. Since it exploded about 50km above the surface, however, the effects on the ground were "minimal" considering the size of the blast. For comparison, Little Boy (Hiroshima bomb) was around 12-15 kt, while the largest nuclear weapon ever exploded was 57 Mt (57,000,000 tons). That was a Soviet-developed hydrogen bomb, scaled down from a 100Mt design!
Other interesting tidbits: this was the largest meteor strike on the Earth since the Tunguska event in 1908, also in Russia (Siberia). Although estimates are less reliable because of the lack of recorded data, it's believed the Tunguska event had a yield of about 1-10 Mt and exploded about 5-10km above the ground. The effects were much more severe, flattening trees over an area of almost 1000 square miles.