MOSCOW (AP) — A meteor streaked across the sky and exploded over Russia's Ural Mountains with the power of an atomic bomb Friday, its sonic blasts shattering countless windows and injuring nearly 1,000 people.
The spectacle deeply frightened many Russians, with some elderly women declaring that the world was coming to an end.
The meteor — estimated to be about 10 tons — entered the Earth's atmosphere at a hypersonic speed of at least 54,000 kph (33,000 mph) and shattered into pieces about 30-50 kilometers (18-32 miles) above the ground, the Russian Academy of Sciences said in a statement.
Amateur video broadcast on Russian television showed an object speeding across the sky about 9:20 a.m. local time, just after sunrise, leaving a thick white contrail and an intense flash.
The meteor released several kilotons of energy above the Chelyabinsk region, the science academy said. The shock wave blew in an estimated 100,000 square meters (more than 1 million square feet) of glass, according to city officials.
"There was panic. People had no idea what was happening," said Sergey Hametov, a resident of Chelyabinsk, a city of 1 million about 1,500 kilometers (930 miles) east of Moscow.
"We saw a big burst of light, then went outside to see what it was and we heard a really loud, thundering sound," he told The Associated Press by telephone.
The meteor hit less than a day before Asteroid 2012DA14 is to make the closest recorded pass of an asteroid to the Earth — about 17,150 miles (28,000 kilometers). But the European Space Agency in a tweet said its experts had determined there was no connection — just cosmic coincidence.
The Interior Ministry said 985 people sought medical care after the shock wave and 44 of them were hospitalized. Most of the injuries were caused by flying glass, it said.
There was no immediate word on any deaths or anyone struck by space fragments.
Meteors typically cause sizeable sonic booms when they enter the atmosphere because they are traveling so much faster than the speed of sound. Injuries on the scale reported Friday, however, are extraordinarily rare.
"I went to see what that flash in the sky was about," recalled resident Marat Lobkovsky. "And then the window glass shattered, bouncing back on me. My beard was cut open, but not deep. They patched me up, it's OK now."
Another resident, Valya Kazakov, said some elderly women in his neighborhood started crying out that the world was ending.
Lessons had just started at Chelyabinsk schools when the meteor exploded, and officials said 204 schoolchildren were among those injured.
Yekaterina Melikhova, a high school student whose nose was bloody and whose upper lip was covered with a bandage, said she was in her geography class when they saw a bright light outside.
"After the flash, nothing happened for about three minutes. Then we rushed outdoors. I was not alone, I was there with Katya. The door was made of glass, a shock wave made it hit us," she said.
Russian television ran footage of athletes at a city sports arena who were showered by shards of glass from huge windows. Some of them were still bleeding.
City officials said 3,000 buildings in the city were damaged by the shock wave, including a zinc factory where part of the roof collapsed.
The vast implosion of glass windows exposed many residents to the bitter cold as temperatures in the city hovered around minus 9 Celsius (15.8 Fahrenheit).
The regional governor immediately urged any workers who can pane windows to rush to the area to help out.
Some fragments fell in a reservoir outside the town of Chebarkul, the regional governor's office said, according to the ITAR-Tass.
A six-meter-wide (20-foot-wide) crater was found in the same area, which could come from space fragments striking the ground, the news agency cited military spokesman Yaroslavl Roshchupkin as saying.
Small pieces of space debris — usually parts of comets or asteroids — that are on a collision course with the Earth are called meteoroids. They become meteors when they enter the Earth's atmosphere. Most meteors burn up in the atmosphere, but if they survive the frictional heating and strike the surface of the Earth they are called meteorites.
The site of Friday's spectacular show is about 5,000 kilometers (3,000 miles) west of Tunguska, which 1908 was the site of the largest recorded explosion of a space object plunging to Earth. That blast, attributed to a comet or asteroid fragment, is generally estimated to have been about 10 megatons; it leveled some 80 million trees.
Scientists believe that a far larger meteorite strike on what today is Mexico's Yucatan Peninsula may have been responsible for the extinction of the dinosaurs about 66 million years ago. According to that theory, the impact would have thrown up vast amounts of dust that blanketed the sky for decades and altered the climate on Earth
The panic and confusion that followed Friday's meteorite crash quickly gave way to Chelyabinsk residents' entrepreneurial instincts. Several people smashed in the windows of their houses in the hopes of pretending they were broken by the meteorite and receiving compensation, RIA Novosti news agency reported.
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