Page "Berkeley, California" Paragraph 46

Berkeley is traversed by the Hayward Fault, a major branch of the San Andreas Fault to the west.

No large earthquake has occurred on the Hayward Fault near Berkeley in historic times ( except possibly in 1836 ), but seismologists warn about the geologic record of large temblors several times in the deeper past, and their current assessment is that a quake of 6. 5 or greater is imminent, sometime within the next 30 years.