A meteor entered the Earth’s atmosphere and blew apart over the city of Chelyabinsk, 1500 kilometers (930 miles) east of Moscow on Friday, February 15. The explosion caused a massive shock wave that damaged hundreds of buildings and injured more than 1,000 people in the Chelyabinsk region. There was no advance warning before the meteor appeared in the sky.
13 slide Powerpoint presentation (zipped ppt/animation 5.35 MB / pdf 3.37 MB)
Presentación en Español (zipped ppt 5.47 MB / pdf 3.21 MB)
CTBTO: How the International Monitoring System Works
