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The press release says that there are plans to look at inundation.

https://news.umich.edu/dinosaur-killing-asteroid-triggered-g...

They do say that airborne water and sediment traveled several hundred kilometers.

It also has some more details about wave height: "their models indicate that open-ocean wave heights in the Gulf of Mexico would have exceeded 100 meters (328 feet), with wave heights of more than 10 meters (32.8 feet) as the tsunami approached North Atlantic coastal regions and parts of South America’s Pacific coast."

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