Old S.F. is an interactive map of 16,000 geotagged photos of San Francisco from the time period 1850 to 2000. The photos are sourced from the San Francisco Public Library’s Historical Photograph Collection, which includes some 40,000 photos. Old S. F. was created by Dan Vanderkam and Raven Keller.
150 years of California earthquakes
Earthquakes in California have been recorded since at least 1769, when an estimated magnitude 6.0 earthquake struck in the Los Angeles Basin. Since the mid-1800s, quakes have been much more systematically logged. This map shows the locations and magnitudes of 189 earthquakes that registered at least 5.0 in California or just offshore since 1865.