Most of those hurt are in the Chelyabinsk region , though the vast majority of injuries are not thought to be serious . Described as once - in-100-years event , the meteor released a 300-kiloton blast . lt had been moving faster than normal because of its close proximity to the Earth . Deep Space Industries thinks we should be proactive in establishing ` ` a sentry . '' A bright white flash appeared in the sky for a few seconds , followed by a heavy bang .
Described as once - in-100-years event , the meteor released a 300-kiloton blast . lt had been moving faster than normal because of its close proximity to the Earth . Deep Space Industries thinks we should be proactive in establishing ` ` a sentry . '' A bright white flash appeared in the sky for a few seconds , followed by a heavy bang .