Northern California Red Outlined quadrangles indicate existing Official Seismic Hazard Zone Maps. Gold Outlined quadrangles indicate Preliminary Seismic Hazard Zone Maps.
White quadrangles indicate maps in progress.
San Francisco Mapping of northern Santa Clara County is under way. The following maps released in Preliminary form. Cupertino San Jose West Southern California Red outlined quadrangles indicate existing Official Seismic Hazard Zone Maps. Black outlined quadrangles indicate areas where mapping is now in progress. Blank areas of the map indicate mapping not planned or not yet scheduled.