Maps are often used with marker clusters to visualize the density of a large number of continuous data in a simple and effective way.
The map displays all US mainland (and surrounding borders) earthquakes with a magnitude of 4.5 and above, from 2000 to 2019.

Good to know


  • Ease the readability of a large number of data by gathering close data.
  • Increase performance.
  • Use with scatter charts and maps.
  • An excellent method to highlight outliers.


  • A map with excessive datasets could be difficult to read.


Learn more about how to create marker clusters with Highcharts.