7.9 – 8.25 magnitude quake and aftershocks sent people around the city outdoors for days. This picture was taken after the 1906 quake on Valley Street.
For more photos of other parts of the city after the quake, the Chronicle reports that the SFMTA has released a trove of rare photos taken by John Henry Mentz, the photographer for United Railroads, the city's transportation operator at the time. Uptown Almanac has some of the best highlights here, including this astonishing one of City Hall.
[Photo: Greg Gaar Collection, via Foundsf.org]