Friday, November 28, 2014


Russia

Russian Scientists Says Meteor Shockwave Circled Globe Twice

A still from a dashcam video from Chelyabinsk that shows the meteor streaking over a Russian highway on February 15, 2013.
A still from a dashcam video from Chelyabinsk that shows the meteor streaking over a Russian highway on February 15, 2013.

Related Articles

Interview: Meteor Expert Says Russian Strike Was 'Extraordinary'

Marina Ivanova, a senior scientist in the Laboratory of Meteoritics at Moscow's Vernadsky Institute, tells RFE/RL what happens when meteors crash into Earth's atmosphere and why the recent incident in central Russia was such an "extraordinary event."
Researchers say the shock wave from the meteor that exploded over Russia's Ural Mountains in February was so powerful that it traveled twice around the globe.

More than 1,200 people were injured when the 17-meter-across, 10,000-ton meteor burned up above Chelyabinsk.

According to a study published in the journal "Geophysical Research Letters," scientists studied data from the International Monitoring System network of sensors.

They can detect large blasts from nuclear tests and other sources.

The researchers report the explosive energy was equivalent to 460 kilotons of TNT, making it the most energetic event reported since the 1908 Tunguska meteor in Siberia, which flattened trees across 2,000 square kilometers of forest.

The atomic bomb dropped on Hiroshima was the equivalent of 16 kilotons of TNT.

Based on reporting by BBC and RFE/RL

Most Popular