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.
// 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 |
// Recommended Preparedness Gear
Based on San Francisco County CA's primary hazard profile (Earthquake / Tsunami), the following gear is recommended for a High risk area.
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// County Profile
| County | San Francisco County CA |
| State | California (CA) |
| Population | 873965 |
| Area | 47 sq miles |
| FEMA Region | Zone X (Seismic Critical) |
// Other California Counties
San Bernardino County CA
Wildfire / Earthquake
8/10
High
Butte County CA
Wildfire / Flooding
9/10
Critical
Alameda County CA
Earthquake / Wildfire
8/10
High
Sonoma County CA
Wildfire / Earthquake
8/10
High
San Diego County CA
Wildfire / Earthquake
8/10
High
Shasta County CA
Wildfire / Flooding
7/10
High