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Though it may seem bizarre that the Russian explosion occurred on the same day as the DA14 flyby, events like the one over Russia are not extraordinarily rare, Boslough said. There were two similarly sized events in , one over Indonesia and one in South Africa , and another in over the Marshall Islands , an island country in the northern Pacific Ocean , though all were above relatively remote spots.
Boslough and other researchers are currently basing their estimates of the size of Friday's meteor on damage reports and YouTube videos uploaded by eyewitnesses. But the proliferation of handheld technology is likely to provide a treasure trove of data for scientists looking to understand the event. Pinpointing the spots where videos are taken and comparing the footage will help nail down the trajectory and speed of the meteor.
It's even possible that iPads or other handheld devices with accelerometers recorded the shock wave as it passed, Boslough said. Editor's Note : The article was updated at p. EST to correct the date of the Marshall Islands meteor event. It was in , not All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Already a subscriber?
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Skip to main content Skip to main menu Skip to search Skip to footer. Search for:. As the Russian meteor burned through Earth's atmosphere, it generated the most powerful infrasound signal ever detected by the CTBTO network, researchers said. And this signal revealed a great deal about the asteroid's size, speed and explosive power. The energy of the resulting explosion exceeded kilotons of TNT.
The Russian fireball likely produced the most powerful such space rock blast since a foot 40 m object exploded over Siberia in , flattening square miles 2, square km of forest.
Preliminary reports suggest that the Chelyabinsk fireball's parent asteroid was composed primarily of stone, with a smidge of iron thrown in. The Russian meteor struck just hours before the foot asteroid DA14 gave Earth a close shave, missing our planet by just 17, miles 27, km. But the two space rocks are unrelated, researchers say, making Feb.
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