The National Seismic Hazard Map is an online, GIS (Geographical Information System Map. Its address is http://eqmaps.cr.usgs.gov/website/nshmp/viewer.htm. The controls on the map enable you to find more information than you might with a simple map. Let’s take a look a screen shot of the map and look at its features:
On the left hand side of the map you see the layers.
The right side of the layer contains a number of tools. The upper left hand corner button is the legend button. Click it to see what the symbols and the colors on the map mean.