High Risk California  ·  Wildfire / Earthquake

Riverside County CA

EMERGENCY PREPAREDNESS & DISASTER RISK PROFILE  ·  LAST UPDATED: Mar 2026

7/ 10
Threat Score
Population
2459762
Area
7303
sq miles
Primary Hazard
Wildfire / Earthquake
FEMA Disasters
48
federally declared

Riverside County in the Inland Empire faces significant wildfire and earthquake risk, compounded by extreme summer heat in its desert communities. The 2022 Fairview Fire near Hemet killed two people and burned over 28,000 acres. The San Jacinto Fault and San Andreas Fault both pass through the county.

// Risk Intelligence

Threat Score 7 / 10    High Risk
Primary Hazard Wildfire / Earthquake
Secondary Hazard Extreme Heat
FEMA Flood Zone Zone X (Seismic High Risk)
Federally Declared Disasters 48
Last Major Event Fairview Fire (2022)
Event Frequency Major event every 3–5 years

// Emergency Operations

Emergency Mgmt Phone (951) 328-3777
Emergency Shelters 42 designated facilities
Evacuation Routes I-10 East, I-15 North, SR-91 West, SR-60

// Recommended Preparedness Gear

Based on Riverside County CA's primary hazard profile (Wildfire / Earthquake), the following gear is recommended for a High risk area.

🥫  72-Hour Emergency Food Kit View on Amazon → 💧  Water Filtration System View on Amazon → ⚡  Portable Generator / Power Station View on Amazon → ☀️  Power Bank View on Amazon →

* ThreatMap USA participates in the Amazon Associates Program. We may earn a commission on qualifying purchases at no extra cost to you.

// County Profile

County Riverside County CA
State California (CA)
Population 2459762
Area 7303 sq miles
FEMA Region Zone X (Seismic High Risk)

// Recent Incidents

Brush Fire Threatens Riverside County Neighborhoods
Unknown CA  ·  Wildfire  ·  Unknown
High
View All Incidents →

// Other California Counties