Help with US Map Pages

When you browse through the state or area maps, you will arrive at a 1°x2° quadrangle map or regional map. The map shows faults in the quadrangle or region, labeled with index numbers. The table below the map shows fault number and associated fault name. Use the number and/or name in the Database Search (link is in the navigation list on the left of each page) to link to more information about a fault.

Remember, some faults do not have additional information in the database; a "No faults selected" message will let you know."


Around each map are arrows where links exist to adjoining maps. Click to move between maps. If there is no arrow in some direction, there is no data in the adjoining map.