Moderate Risk Hawaii  ·  Hurricane / Volcanic

Honolulu County HI

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

7/ 10
Threat Score
Population
1
Area
600
sq miles
Primary Hazard
Hurricane / Volcanic
FEMA Disasters
8
federally declared

Honolulu County HI in Hawaii faces hurricane / volcanic risk across its 600 square mile area. Honolulu faces hurricane tsunami and earthquake risk as Hawaii's most populous county. Honolulu serves as the county seat and regional emergency coordination hub.

// Preparedness Recommendations

  • Evacuation routes inland should be identified in advance.
  • Store at least 72 hours of food and water.
  • Elevate critical belongings above flood level.
  • Have backup power ready in case of grid failure.

// 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 Hurricane / Volcanic
Secondary Hazard Tsunami
FEMA Flood Zone Moderate
Federally Declared Disasters 8
Last Major Event 2018 Hurricane Lane
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (808) 723-7000
Emergency Shelters 3 designated facilities
Evacuation Routes State and US highways

// County Profile

County Honolulu County HI
State Hawaii (HI)
Population 1
Area 600 sq miles
FEMA Region Moderate

// Major Cities

Wahiawa HI Aiea HI Marine Corps Base Hawaii HI Schofield Barracks HI Kapolei HI Makakilo HI Waipahu HI Mililani HI Ewa Beach HI Kaneohe HI

// Cities in This County

// Other Hawaii Counties

// Nearby Infrastructure Risks

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

Joint Base Pearl Harbor-Hickam HI
Military Installation  ·  Honolulu  ·  US Navy / US Air Force  ·  25-mi risk zone
8/10 High
🏥
Queens Medical Center Honolulu HI
Major Hospital  ·  Honolulu, HI  ·  The Queens Health Systems  ·  25-mi risk zone
8/10 High
💧
Honolulu Board of Water Supply HI
Water Treatment  ·  Honolulu, HI  ·  Honolulu Board of Water Supply  ·  5-mi risk zone
8/10 High
Schofield Barracks HI
Military Installation  ·  Wahiawa, HI  ·  US Army  ·  25-mi risk zone
7/10 High
Marine Corps Base Hawaii HI
Military Installation  ·  Kaneohe, HI  ·  US Marine Corps  ·  25-mi risk zone
7/10 High

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