From the Document: "Although we can't prevent earthquakes striking in the communities where people work and live, we can take action to impact the most important factor in saving lives and reducing losses from an earthquake: adopt and enforce up-to-date building codes. As seismic-preparedness experts often remind us, 'Earthquakes don't kill people, but collapsed buildings do.' Building codes regulate the design, construction, alteration, and maintenance of structures in the United States. They specify the minimum requirements to safeguard the health, safety, and welfare of building occupants. Throughout the nation, the national model building codes are adopted and enforced by the state, local, tribal, and territorial (SLTT) authorities, not by the federal government. Evidence from past earthquakes indicates adoption and enforcement of the latest model building codes is one of the most effective seismic mitigation strategies available to communities."
Federal Emergency Management Agency: https://www.fema.gov/