Hawaii landslide risk
Honolulu County has the highest landslide risk in Hawaii, scoring 99.6 out of 100 — rated "Relatively High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Honolulu County | 99.6 | Relatively High | 7 |
| 2 | Kauai County | 95.4 | Relatively Moderate | 6 |
| 3 | Hawaii County | 84.1 | Relatively Low | 4 |
| 4 | Maui County | 55.8 | Very Low | 2 |
| 5 | Kalawao County | 1.1 | Very Low | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Landslide risk nationally:
Other hazard risks in Hawaii:
Frequently asked questions
What is the highest landslide risk county in Hawaii?
Honolulu County, HI has the highest landslide risk in Hawaii, with a FEMA National Risk Index score of 99.6 out of 100 (rated "Relatively High").
What causes landslide risk in Hawaii?
Landslide risk covers expected losses from hillslope failures, rockfalls, and debris flows triggered by heavy rainfall, snowmelt, wildfire, or earthquakes. High scores concentrate in the Pacific Northwest, California coastal ranges, Appalachians, and Rocky Mountain foothills, where steep terrain combines with intense precipitation or seismic activity.