How close am I to an active fault?
The United States Geological Survey collaborated with Google Maps to help homeowners determine exactly where their house is in relation to any of the known earthquake faults in the Bay Area. This is how you do it:
STEP 1: Download Google Earth Pro
STEP 2: go to this webpage.
STEP 3: Using Chrome you will see a page that looks like this. Click where shown by the red arrow
STEP 4: Now you will see a small box on the bottom left hand corner of the same page. Click on the down arrow
If you use Firefox you will see this. Click OK or Enter
STEP 5: Google Earth will now open. The blue lines are the Bay Area’s known earthquake faults.
STEP 6: On the sidebar you should only have the arrowed boxes checked. You may need to scroll to the bottom of the sidebar to see this list.
STEP 7: Type your address into the Search Bar on the upper left and hit Search
For example: if we type in 2981 Russell St. and hit search you will see this. The grayed out area designates the Alquist Priolo Special Studies Zone where surface ruptures have occurred in the past. It is important to understand there may be unknown faults, just as the Northridge earthquake occurred on a fault previously unknown to geologists.