Meteorites hit Earth every day, but are so small that only a handful each year are noticed.
Chances are about a million to one that a substantial meteorite will reach Earth in any given year, but, statistically, it is inevitable.
The Vitim event on September 25, 2002 is believed to be an impact by a bolide or comet nucleus in the Vitim River basin near the town of Bodaybo in the Mamsko-Chuisky district of Irkutsk Oblast, Siberia, Russia.
Several people have suggested that the Vitim event is similar to the Tunguska event of 1908.
