This Google Maps mashup is designed as a useful tool for civil engineers in Italy. The map shows seismic hazards in Italy and the spectra response of seismic action.
Using the search form it is possible to find the spectrum of response and seismic hazard curves of each Italian municipality. When the map is zoomed in the circle map markers will reveal the spectra response at that location. The information window includes a link to also load a chart of the spectra response for the selected location.