About 7 years hope I helped :)
Answer:
Your username looks like you headbutted the keyboard and unfortunately, I doubt anyone is going to write three paragraphs for you.
Explanation:
Start here:
https://science.howstuffworks.com/environmental/earth/oceanography/rogue-wave4.htm
Answer:
This may be the case because of the placements of the spread. While one is more cluttered, the other is a bit more spread apart. Meaning that the GeoChart on the right must have more cases, exactly because of their population.