ΔE 9.1, close: similar, with a visible difference side by side. US Earth Yellow is more muted, warmer than Yellow Ochre.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). US Earth Yellow is more muted, warmer than Yellow Ochre.
The same difference applies the other way round: Yellow Ochre is more saturated, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Yellow Ochre on the colour wheel See US Earth Yellow on the colour wheel
All matches: Yellow Ochre equivalents · US Earth Yellow equivalents