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Hi, my name is Michael and I'm a programmer. We're building a web portal at infp.ro to be used by the countries surrounding the Black Sea for monitoring earthquake activities. Among other things, like adding the recent events on a map with different layers (using geoserver, openlayers...), we must generate maps like these http://atlas.infp.ro/~shake/shakemap/11540/intensity.html but as GeoTIFF. The test files that I was given are http://esnet.infp.ro/docs/grid.xml and http://esnet.infp.ro/docs/grid.xyz We don't have any experience with GMT and generating this kind of scientific data but by the looks of it I thought GMT has to be the solution. I started reading the documentation which looks pretty comprehensive but the deadline is really close (geoserver and the likes, took too much time). So the xml seems to have all the data needed: lon_min, lat_min, lon_max, lat_max for the borders of the map and the grid data with lon and lat for every point and the column with the relevant value (intensity, pga, pgv). But I'm stuck at square one which would be generating the base map. Initial pscoast.exe test crashes on windows (although the examples "compile" to ps). So is anyone knowledgeable in GMT around here that can land a hand?