Officials from around the world were quick to call for greater vigilance in monitoring meteors.
"Today's event is a strong reminder of why we need continuous efforts to survey and identify near-Earth objects," said Thomas Reiter, European Space Agency's Director of Human Spaceflight and Operations.
Deep Space Industries, a recently created space exploration company, said countries should be proactive in establishing "a sentry line of spacecraft circling the Earth to intercept and evaluate incoming threats."
"The hundreds of people injured in northern Russia show it's time to take action and no longer be passive about these threats," said Rick Tumlinson, chairman of Deep Space Industries.
NASA spokesman Steve Cole told CNN that scientists had determined that the Russian meteor was on a very different trajectory from the larger asteroid.
"They are completely unrelated objects -- it's a strange coincidence they are happening at the same time," said Don Yeomans, manager of the Near-Earth Object Program Office at NASA's Jet Propulsion Laboratory.
"This kind of object does fall fairly frequently, but when they fall into the ocean or desert, there is no impact on people -- so this one is unusual in the sense that it's come over a populated area," Yeomans said.
Cole said he wasn't aware whether scientists had foreseen the meteor's entry into the atmosphere.
Because meteoroids are small, they are hard to spot and there is often little warning that they are heading toward Earth, he said.