The 1872 Lone Pine earthquake occurred on 28 March 1872. The 30 March 1872 issue of the Inyo Independent included the following headlines:
The magnitude 7.4 earthquake pretty much destroyed the city of Lone Pine, due to the largely adobe construction of the homes there. 52 out of 59 homes were destroyed. To read more from the US Geological Survey see http://earthquake.usgs.gov/regional/states/events/1872_03_26.php which includes a picture of the fault. John Muir described what it was like to be in that earthquake. His observations are posted at http://projects.crustal.ucsb.edu/understanding/accounts/muir.html.
The 1906 San Francisco earthquake is estimated to have been just a little stronger, anywhere from 7.7 and up. San Francisco suffered more devestation (people killed, the fires, etc) because of its larger population.