The Telegraph reported on Feb. 16, 2013, that the meteor that hit Russia on Friday, exploded with a force of about 30 times greater than the Hiroshima bomb dropped during World War II, NASA scientists have said.
Paul Chodas of NASA, said in a statement published on the NASA website, "We would expect an event of this magnitude to occur once every 100 years on average.
"When you have a fireball of this size we would expect a large number of meteorites to reach the surface and in this case there were probably some large ones," he added.
The Telegraph wrote, "The 55-foot rock, said by NASA to have a mass of 10,000 tonnes, plunged to Earth in the Urals region on Friday morning, causing shockwaves that injured 1,200 people and damaged thousands of homes in an event unprecedented in modern times.
"Scientists from NASA, the US space agency, estimated that the amount of energy released from impact with the atmosphere was about 30 times greater than the nuclear bomb dropped on the Japanese city of Hiroshima during World War II.
"The strike brought traffic to a halt in the industrial city of Chelyabinsk as residents poured out on the streets to watch the light show before hovering for safety as a sonic boom shattered glass and set off car alarms. Most of the injuries were caused by glass."
The powerful meteor is said to have hit 32 miles above the earth at 10-13 miles per second.
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