The San Francisco Earthquake of 1906 had significant implications for urban planning and disaster preparedness in American cities. The earthquake and subsequent fires caused widespread destruction, resulting in the deaths of thousands and the displacement of many more. The devastation prompted a reassessment of building codes and urban infrastructure, as cities recognized the need to improve construction standards to ensure public safety. In response, San Francisco and other cities enacted stricter zoning laws, improved emergency response systems, and developed better urban planning strategies to mitigate risks from future disasters. This event highlighted the importance of resilience in urban development.