Moderate Risk Washington  ·  Earthquake / Tsunami

Jefferson County WA

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

7/ 10
Threat Score
Population
32
Area
1,805
sq miles
Primary Hazard
Earthquake / Tsunami
FEMA Disasters
8
federally declared

Jefferson County WA in Washington faces earthquake / tsunami risk across its 1,805 square mile area. Port Townsend serves this Olympic Peninsula county with Cascadia earthquake and tsunami risk. Jefferson serves as the county seat and regional emergency coordination hub.

// Recommended Supplies

Essential gear for power outages, severe weather, and emergency situations in your area.

// Risk Intelligence

Threat Score 7 / 10    Moderate Risk
Primary Hazard Earthquake / Tsunami
Secondary Hazard Volcanic
FEMA Flood Zone Moderate
Federally Declared Disasters 8
Last Major Event 2001 Earthquake
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (360) 385-9100
Emergency Shelters 3 designated facilities
Evacuation Routes State and US highways

// County Profile

County Jefferson County WA
State Washington (WA)
Population 32
Area 1,805 sq miles
FEMA Region Moderate

// Major Cities

Port Townsend WA

// Cities in This County

// Other Washington Counties

// Nearby Infrastructure Risks

Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.

Naval Base Kitsap WA
Port / Marine Terminal  ·  Bremerton, WA  ·  US Navy  ·  25-mi risk zone
8/10 High

Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.