Sounds crazy but I guess a 100 foot wide asteroid hitting earth wouldn't do much.
Quote:
At roughly 30 meters (100 feet) in diameter, 2013 TX68 would likely produce an air burst with about twice the energy of the Chelyabink asteroid. However, since scientists are actively monitoring this and other NEOs, the odds of it exploding above a community without warning are even worse than it actually entering our atmosphere.
NASA Says "No Chance" Small Asteroid Will Hit Earth On March 5th - Universe Today
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