Greene County
Tennessee — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 56th
Greene County faces low composite natural disaster risk (NRI Risk Index score 56.3, 56th national percentile), driven primarily by landslide and lightning exposure. Expected annual loss across all 18 hazard types is $14M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Landslide | Medium | 1.69 / yr | $60K |
| Lightning | High | 51.55 / yr | $664K |
| Earthquake | Low | 0.00 / yr | $2M |
| Riverine Flood | Low | 1.29 / yr | $7M |
| Strong Wind | Medium | 3.86 / yr | $590K |
| Cold Wave | Low | 1.16 / yr | $1M |
| Tornado | Low | 0.13 / yr | $1M |
| Drought | Low | 18.81 / yr | $203K |
| Ice Storm | Low | 0.18 / yr | $98K |
| Hail | Low | 3.07 / yr | $245K |
| Hurricane | Very Low | 0.01 / yr | $46K |
| Wildfire | Very Low | 0.00 / yr | $25K |
| Winter Weather | Low | 8.67 / yr | $27K |
| Heat Wave | Very Low | 0.14 / yr | $26K |
| 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 Greene County?
Greene County has a composite FEMA National Risk Index score of 56.3 out of 100, placing it in the Low category and the 56th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Greene County?
The three highest-rated hazards are Landslide (Medium, $60K EAL), Lightning (High, $664K EAL), Earthquake (Low, $2M EAL). These account for most of the county's expected annual losses.
How does Greene County compare to other Tennessee counties?
Greene County ranks #48 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. Greene County's $14M EAL is a statistical average, not a guarantee for any specific year or address.