This volume marks the impact of Google Earth on our subject. Papers show how Google Earth has augmented the value of geospatial data, how Google earth can be used to display seismic focal mechanisms and Centroid Moment Tensors, to examine magmatic emplacement sequences and radioelement distribution patterns, or to visualise active normal fault scarps in the Apennines, Italy, as a key to assessment of tectonic strain release and earthquake rupture.