San Francisco County sits directly on the San Andreas Fault and experienced the catastrophic 1906 earthquake and fire that killed over 3,000 people. The 1989 Loma Prieta earthquake collapsed the Bay Bridge and caused 63 deaths. Large portions of the city are built on bay fill subject to liquefaction, and coastal areas face tsunami risk.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
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// Risk Intelligence
| Threat Score | 8 / 10 High Risk |
| Primary Hazard | Earthquake / Tsunami |
| Secondary Hazard | Liquefaction |
| FEMA Flood Zone | Zone X (Seismic Critical) |
| Federally Declared Disasters | 62 |
| Last Major Event | Loma Prieta Earthquake (1989) |
| Event Frequency | Major event every 3–5 years |
// Emergency Operations
| Emergency Mgmt Phone | (415) 558-3500 |
| Emergency Shelters | 38 designated facilities |
| Evacuation Routes | Bay Bridge East, Golden Gate North, US-101 South |
// County Profile
| County | San Francisco County CA |
| State | California (CA) |
| Population | 873,965 |
| Area | 47 sq miles |
| FEMA Region | Zone X (Seismic Critical) |
// Major Cities
// Cities in This County
// Other California Counties
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.