Hi Todd. Here is a list of some of the quakes that occurred and around the Bay Area before the 1906 quake. I threw in the 1857 quake to see there may be something there, but there doesn’t appear to be anything that might suggest another large quake was on the way.

To see all of the quakes for California and surrounding area click on the link. Take Care…Don in creepy town

1808 6 24 0 0 37 48.00 122 30.00 6.0 San Francisco region
1836 6 10 1530 37 48.00 122 12.00 6.75 Hayward Valley
1838 6 0 0 0 37 36.00 122 24.00 7.0 San Francisco Peninsula
1856 2 15 1325 37 30.00 122 18.00 5.5 San Francisco Peninsula

1857 1 9 16 0 35 42.00 120 18.00 8.25 Great Fort Tejon earthquake

1858 11 26 835 37 30.00 121 54.00 6.25 San Jose region
1861 7 4 011 37 48.00 122 0. 5.75 San Ramon Valley
1864 2 26 1347 37 6.00 121 42.00 6.0 S. Santa Cruz Mountains
1864 3 5 1649 37 42.00 122 0. 5.75 E. of San Francisco Bay
1865 10 8 2046 37 0.00 122 00.00 6.5 S. Santa Cruz Mountains
1866 7 15 0630 37 30.00 121 18.00 6.0 W. San Joaquin Valley
1868 10 21 1553 37 42.00 122 6.00 7.0 Hayward fault
1870 2 17 2012 37 12.00 122 6.00 6.0 Los Gatos
1881 2 2 011 36 0. 120 30.00 5.75 Parkfield
1881 4 10 10 0 37 24.00 121 24.00 6.0 W. San Joaquin Valley
1882 3 6 2145 36 54. 121 12. 5.75 Hollister
1884 3 26 40 37 6. 122 12. 6.0 Santa Cruz Mountains
1885 4 12 4 5 36 24.00 121 0. 6.25 S. Diablo Range
1889 5 19 1110 38 0. 121 54.00 6.25 Antioch
1890 4 24 1136 36 54.00 121 36.00 6.25 Pajaro Gap
1892 4 19 1050 38 24.00 122 0. 6.5 Vacaville
1892 4 21 1743 38 30.00 121 54.00 6.25 Winters
1892 11 13 1245 36 48.00 121 30.00 5.75 Hollister
1897 6 20 2014 37 0. 121 30.00 6.25 Gilroy
1898 3 31 743 38 12.00 122 24.00 6.5 Mare Island
1897 6 20 2014 37 0. 121 30.00 6.25 Gilroy
1898 3 31 743 38 12.00 122 24.00 6.5 Mare Island
1901 3 3 745 36 0. 120 30.00 6.4 Parkfield
1903 6 11 1312 37 24.00 121 54.00 5.5 San Jose
1903 8 3 649 37 18.00 121 48.00 5.5 San Jose

1906 4 18 1312 37 42.00 122 30.00 8.25 Great 1906 earthquake

http://geology.about.com/gi/dynamic/offsite.htm?site=http%3A%2F%2Fpasadena.wr.usgs.gov%2Finfo%2Fcahist_eqs.html

• 1769--2004 Quake List