Sevier County
Tennessee — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 77th
Sevier County faces low composite natural disaster risk (NRI Risk Index score 77.4, 77th national percentile), driven primarily by landslide and earthquake exposure. Expected annual loss across all 18 hazard types is $32M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Landslide | Medium | 2.49 / yr | $338K |
| Earthquake | Low | 0.00 / yr | $4M |
| Lightning | High | 55.12 / yr | $767K |
| Riverine Flood | Medium | 1.46 / yr | $21M |
| Winter Weather | Medium | 9.08 / yr | $191K |
| Wildfire | Low | 0.00 / yr | $306K |
| Tornado | Medium | 0.15 / yr | $2M |
| Cold Wave | Medium | 1.51 / yr | $2M |
| Strong Wind | Medium | 4.33 / yr | $688K |
| Ice Storm | Medium | 0.21 / yr | $120K |
| Hurricane | Very Low | 0.02 / yr | $119K |
| Hail | Low | 2.98 / yr | $286K |
| Heat Wave | Very Low | 0.47 / yr | $162K |
| Drought | Very Low | 23.44 / yr | $18K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Sevier County?
Sevier County has a composite FEMA National Risk Index score of 77.4 out of 100, placing it in the Low category and the 77th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Sevier County?
The three highest-rated hazards are Landslide (Medium, $338K EAL), Earthquake (Low, $4M EAL), Lightning (High, $767K EAL). These account for most of the county's expected annual losses.
How does Sevier County compare to other Tennessee counties?
Sevier County ranks #17 of 95 Tennessee counties for overall natural disaster risk, with a low rating.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Sevier County's $32M EAL is a statistical average, not a guarantee for any specific year or address.