The San Pablo Fault is a fault in

northern California Northern California (commonly shortened to NorCal) is a geocultural region that comprises the northern portion of the U.S. state of California, spanning the northernmost 48 of the state's List of counties in California, 58 counties. Northern Ca ...

.Point Molate Casino EIR, Volume I, 2009, accessed May 25, 2010
It is an offshoot of the

Hayward Fault The Hayward Fault Zone is a right-lateral strike-slip geologic fault zone capable of generating destructive earthquakes. The fault was first named in the Lawson Report of the 1906 San Francisco Earthquake in recognition of its involvement in the ...

. It formed the Potrero Hills in

Richmond, California Richmond is a city in western Contra Costa County, California, United States. The city was municipal corporation, incorporated on August 3, 1905, and has a Richmond, California, City Council, city council.

Notes

Seismic faults of California Geology of Alameda County, California Geology of Contra Costa County, California Geography of Richmond, California {{ContraCostaCountyCA-geo-stub