Several strands of the SAF in the eastern region of the San Francisco Bay Area are the Hayward – Rodgers Creek and Calaveras Faults . The Hayward Fault exhibits fault creep , but it also has potential for large earthquakes , like the 1868 Hayward earthquake that occurred on its southern segment . The northern Calaveras Fault meets the Hayward Fault near the Calaveras Reservoir and can also produce large earthquakes . Except for a large shock that occurred in 1911 , the central and southern segments might only produce smaller events and fault creep
1868 Hayward earthquake
1868 Hayward earthquake
1979 Coyote Lake earthquake