California-Nevada Fault Maps

This webpage is being phased out and is no longer maintained. Please use the new Real-time Earthquake Map instead and update your bookmark. See Quick Tips & User Guide.


  • Click on an earthquake or fault for more information.
  • Click on blue arrows around map to see next map in that direction.
  • Did You Feel It? - Report an earthquake


  • Red lines are known faults (orange lines are unnamed faults).
  • Thin grey lines are roads.
  • Magnitude = ? for new earthquakes until a magnitude is determined (takes 4-5 minutes).
  • Earthquakes can appear near a fault without having occurred on that fault. To associate an earthquake with a fault requires viewing both of them in three-dimensions.
  • Maps show events recorded in the past 7 days.
  • Maps are updated whenever a new earthquake has been located. Try to reload this page if you do not have the most current map.

Earthquake Lists

  • Big CA-NV Earthquakes
  • All CA-NV Earthquakes

Special Regional Maps

  • Long Valley
  • Los Angeles
  • San Francisco
  • Parkfield

Additional Maps and Info

  • California Nevada Maps without fault names is neither affiliated with the authors of this page nor responsible for its contents. This is a safe-cache copy of the original web site.