Gibson County
Tennessee — Natural Disaster Risk Assessment
MediumComposite Risk Score
National percentile: 86th
Gibson County faces medium composite natural disaster risk (NRI Risk Index score 85.9, 86th national percentile), driven primarily by earthquake and tornado exposure. Expected annual loss across all 18 hazard types is $49M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Earthquake | Medium | 0.01 / yr | $27M |
| Tornado | High | 0.46 / yr | $7M |
| Lightning | High | 57.85 / yr | $1M |
| Cold Wave | Medium | 2.42 / yr | $4M |
| Ice Storm | High | 1.13 / yr | $487K |
| Winter Weather | Medium | 7.05 / yr | $207K |
| Heat Wave | Medium | 13.79 / yr | $1M |
| Strong Wind | Medium | 2.14 / yr | $1M |
| Drought | Medium | 7.57 / yr | $520K |
| Landslide | Very Low | 0.66 / yr | $2K |
| Hurricane | Very Low | 0.03 / yr | $94K |
| Riverine Flood | Low | 1.61 / yr | $6M |
| Wildfire | Very Low | 0.00 / yr | $6K |
| Hail | Very Low | 2.97 / yr | $33K |
| 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 Gibson County?
Gibson County has a composite FEMA National Risk Index score of 85.9 out of 100, placing it in the Medium category and the 86th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Gibson County?
The three highest-rated hazards are Earthquake (Medium, $27M EAL), Tornado (High, $7M EAL), Lightning (High, $1M EAL). These account for most of the county's expected annual losses.
How does Gibson County compare to other Tennessee counties?
Gibson County ranks #10 of 95 Tennessee counties for overall natural disaster risk, with a medium 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. Gibson County's $49M EAL is a statistical average, not a guarantee for any specific year or address.