Comparing slant range deformation around the Palabora pit for two months. The first image covers 22 July to 15 August 2004, the second image covers 15 August to 8 September. Note a decrease in deformation in the second image. For legend see the image above. The results are based on InSAR results, overlaid on a Quickbird high-resolution optical image. The area enclosed in blue exhbits fast motion, the area enclosed in green exhibits slow motion. Slant deformation provided by Vexcel; the Quickbird image provided by Infoterra Ltd, copyright Digital Globe Inc 2004, data courtesy of Eurimage.