Alameda County sits astride the Hayward Fault, one of the most dangerous urban faults in the United States. Seismologists consider the Hayward Fault capable of producing a magnitude 7.0 earthquake that would devastate the East Bay. The 1991 Oakland Hills Fire killed 25 people and destroyed 3,000 structures on the county's hillsides.
// 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 / Wildfire |
| Secondary Hazard | Flooding |
| FEMA Flood Zone | Zone X (Seismic High Risk) |
| Federally Declared Disasters | 50 |
| Last Major Event | Oakland Hills Fire (1991) |
| Event Frequency | Major event every 3–5 years |
// Emergency Operations
| Emergency Mgmt Phone | (510) 208-9700 |
| Emergency Shelters | 52 designated facilities |
| Evacuation Routes | I-880 South, I-580 East, I-80 West, SR-24 East |
// County Profile
| County | Alameda County CA |
| State | California (CA) |
| Population | 1,682,353 |
| Area | 821 sq miles |
| FEMA Region | Zone X (Seismic High Risk) |
// 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.