Shock waves triggered by ... changes in tidal levels. The tidal changes occurred three to four hours earlier than the expected arrival time of a typical tsunami generated by an offshore earthquake.
NASA says that the impact could kill up to a million people, "averaged over all possible impact locations". NASA says, 'These deaths could result from a direct hit or by tsunami (tidal wave) in the ...
NASA says, 'These deaths could result from a direct hit or by tsunami (tidal wave) in the event of an ocean strike.' An asteroid ‘blew up’ over the Russian town of Chelyabinsk in 2013.
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