History repeats and it's a blast!

I am praying for the Russians who were in or near the recent blast but was also intrigued by some of the comments in this article.

"We would expect an event of this magnitude to occur once every 100 years on average," said Paul Chodas of NASA's Near-Earth Object Program Office at the Jet Propulsion Laboratory in Pasadena, California.

The only novel I have actually pitched begins in Ukraine and Russia, one day before the Tunguska event in 1908.  This blast was not in the exact same location but globally speaking, not far at all and roughly 105 years later.