See amazing before and after footage of the 1906 San Francisco earthquake. Explore more here: http://gtty.im/2okSVLx | Getty Images

111 years ago today at 5:12 a.m., a massive earthquake shook San Francisco. The earthquake and the fires that followed killed an estimated 3,000 people and left half the city's residents homeless. http://abc7ne.ws/2oRg1fR | ABC7 News

The Great San Francisco Earthquake occurred on this day in 1906. Reports from residents on shaking and damage experienced in the earthquake were collected, which were used to create an intensity map reflecting the felt effects of the earthquake. | EarthScope Consortium

On this day in 1989, a powerful 6.9 magnitude earthquake struck the Bay Area, changing lives forever. The Loma Prieta Earthquake took 63 lives, injured over 3,000, and caused devastating damage. This include the collapse of part of the San Francisco-Oakland Bay Bridge and massive fires in the Marina District. | KPIX CBS San Francisco Bay Area