The 1906 San Francisco Earthquake and Fire "There is practically nothing left..." “At 5:13 o’clock A.M. of this 18th day of April 1906 San Francisco and vicinity was visited with a most violent earthquake shock.” The clerk of the U.S. District Court of San Francisco wrote these words in the court minute book, explaining why court was adjourned that day. His note describes one of the most devastating natural disasters in the history of the United States.