How can we mapped earthquake size in circle of different radius and color based on depth cpr

Q&A
1

Mapping legend in earthquake visualization

2

Look at plot with option -Sc (symbol circle [3rd column = size]) and -Ccolor.cpt (related to makecpt module)

gmt makecpt -T0/9 > color.cpt
gmt plot file.txt -Sc -Ccolor.cpt

text.txt = lon | lat | depth(radius)
3

This will give same size circle of different colour depending on depth
I need different size circle for different magnitude having colour based on depth
Also need to show these in colour bar and legends
Someone plz suggest me.

4

See example 22 for plotting circles of varying sizes an colors based on extra data columns.