GMT (Generic Mapping Tools) shell scripts plotting earthquake source mechanisms over relief basemaps: focal-mechanism beachballs from GCMT moment tensors (psmeca), first-motion polarities (pspolar) and GPS/crustal velocity vectors (psvelo) for seismotectonic analysis.
cartography geoscience seismology earthquakes generic-mapping-tools geophysics gmt shell-scripting moment-tensor crustal-deformation plate-tectonics geospatial-visualization beachball focal-mechanisms marine-geophysics seismotectonics psmeca pspolar psvelo gcmt
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Updated
Sep 12, 2026 - Shell