Scott K. Johnson, on Ars Technica:
It seems that the Chicxulub impact shook loose sediment along well over 2,000 miles of submarine slopes. That cascade of sediment probably triggered tsunamis—although the impact would have directly spawned tsunamis of its own in the Gulf of Mexico.
Another one for the “fun to watch” file, though this one would probably be more fun to watch from an orbiting spacecraft than, you know, on the planet.