San Francisco Shakes: Earthquake and Fire Devastate the City

The San Andreas Fault ruptured at 5:12 AM on April 18, 1906, and within sixty seconds the city of San Francisco was destroyed. The earthquake, estimated at magnitude 7.9, tore a 296-mile gash along the fault line from San Juan Bautista to Cape Mendocino. Buildings collapsed across the city as the ground lurched horizontally up to twenty feet. But the earthquake was only the beginning. Broken gas mains ignited fires that burned uncontrolled for three days, destroying 28,000 buildings across 490 city blocks. The fire department was crippled from the first minutes. Fire Chief Dennis Sullivan was fatally injured when the California Hotel collapsed onto the fire station where he slept. Water mains shattered throughout the city, leaving firefighters with empty hoses. Brigadier General Frederick Funston, acting without orders from Washington, deployed Army troops from the Presidio to dynamite buildings and create firebreaks, a strategy that sometimes worked and sometimes spread the fires further. Mayor Eugene Schmitz authorized soldiers to shoot looters on sight. An estimated 3,000 people died, though the actual toll was almost certainly higher. The city government deliberately undercounted deaths to protect real estate values and encourage reconstruction. Approximately 225,000 of the city's 400,000 residents were left homeless, camping in Golden Gate Park and the Presidio in tent cities that persisted for months. Refugee camps operated under quasi-military discipline, with meal lines, sanitation details, and curfews. San Francisco rebuilt with remarkable speed, driven partly by the city's commercial importance as the West Coast's premier port and financial center, and partly by a deliberate campaign to minimize the disaster's significance. City leaders blamed the fire rather than the earthquake for the destruction, because earthquake damage was not covered by insurance while fire damage was. This strategic framing shaped public memory but did nothing to address seismic risk. The city was rebuilt on the same fault lines, with the same vulnerability, a gamble that continues today.