Now, abouth the shifting:
gmt begin test png
gmt psbasemap -R-70/-50/-71/-60/-5500/3000 -JL-60/-65/-72/-60/15c -JZ5c -p-35/35/-5500 -B -Bza2000f1000 -BWseNZ
gmt end
produces this:
and the code (note the change in z-level to -1000):
gmt begin test png
gmt psbasemap -R-70/-50/-71/-60/-5500/3000 -JL-60/-65/-72/-60/15c -JZ5c -p-35/35/-1000 -B -Bza2000f1000 -BWseNZ
gmt end
produces this long shift to right:
Why ?