This website offers three ways of viewing new USGS mapping of active traces of the Hayward fault.

1) A Zoomed Map viewer works better for older computers and dial-up connection, uses a free plugin, Flashplayer

2) To view printable maps showing the fault at fixed 1:12,000 scale, use the Annotated Map viewer, which also provides scientific evidence documenting the locations of the active fault traces

3) ArcGIS digital database for technical users

About the map

New map updates previous map (1992)