In the event of a collision, there’s a 71 percent chance that the asteroid will strike the ocean. How dangerous is that?
Given its size, not that much. Some worry about a tsunami risk, but the fact is, the Pacific and Indian Oceans have been under-monitored for a long time (and still are, although the Australia region space watch is excellent), and impacts of that size happen, on average, every 50 years or less, and there haven’t been any unexplained devastating tsunamis.
I think they gave the dimension as 22 meters? The Barringer Crater object was perhaps five times that — but in all three dimensions, thus, 125 times the mass (give or take composition). One wouldn’t want to be under it, should this happen, and the similar size of the Chelyabinsk meteor (which blew 18 miles up) showed what kind of widespread but minor damage can result, but the short answer is, probably not much.