Effect of human activity and population growth in the
S.F. Bay area during the period from 1850 to 1990. The green pattern
shows open wetlands, and the red pattern shows growing population
centers. Also shown are some of the major earthquakes (yellow dots)
that have taken place.
Source: San Andreas Fault and Coastal Geology, from
Half Moon Bay to Fort Funston-Crustal Motion, Climate Change, and
Human Activity by Andersen D., Sarna-Wojcicki, A., Sedlock, R.
(2001). In: Stoffer, Philip W. and Gordon, Leslie C. 2001 (eds.).
Geology and Natural History of the San Francisco Bay Area, A Field-Trip
Geological Survey, Bulletin 2188. Field Trip 4, pp. 87-104. (Fig.