Of course, they didn't have phones and telegraphs back then, and based on different geographies, the impact of the Flood would be different.
So it's only normal the chronicles don't relate the same thing. They are from different geographical points of view.
What I'm saying is, just like a Dinossaur footprint or Fossil is a Hint which one can choose to ignore, so is the Universalism in talking about a Flood a Hint that you can choose to ignore.