St. Thomas Island, VI
FEMA National Risk Index scores, disaster declarations & hazard data
St. Thomas Island has experienced 28 federally declared disasters since 1971, most recently Tropical Storm Ernesto in 2025. Its overall natural hazard risk is rated Insufficient Data — compared to other US counties.
Past disasters & FEMA designations
A federal disaster declaration officially designates a county for FEMA disaster assistance. St. Thomas Island has been designated in 28 declarations since 1971, covering 6 disaster types including hurricane (17), flood (3), tropical storm (2).
| Year | Type | Event name |
|---|---|---|
| 2025 | Tropical Storm | Tropical Storm Ernesto |
| 2024 | Tropical Storm | Tropical Storm Ernesto |
| 2020 | Hurricane | Potential Tropical Cyclone Nine |
| 2020 | Biological | Covid-19 Pandemic |
| 2020 | Biological | Covid-19 |
| 2019 | Hurricane | Hurricane Dorian |
| 2017 | Hurricane | Hurricane Maria |
| 2017 | Hurricane | Hurricane Maria |
| 2017 | Hurricane | Hurricane Irma |
| 2017 | Hurricane | Hurricane Irma |
Showing the 10 most recent of 28 total declarations since 1971.
Source: FEMA OpenFEMA Disaster Declarations Summaries. A single disaster can produce more than one record per county. Data current through September 2026.
Risk by hazard type
| Hazard | Risk rating | Risk score | Recorded events | Deaths | Prop. damage |
|---|---|---|---|---|---|
| Wildfire | Insufficient Data | — | 0 | 0 | — |
| Inland Flooding | Insufficient Data | — | 0 | 0 | — |
| Coastal Flooding | Insufficient Data | — | 2 | 0 | — |
| Earthquake | Insufficient Data | — | 421 | — | — |
| Heat Wave | Insufficient Data | — | 2 | 0 | — |
| Tornado | Insufficient Data | — | 0 | 0 | — |
| Hurricane | Insufficient Data | — | 0 | 0 | — |
| Hail | Insufficient Data | — | 0 | 0 | — |
| Strong Wind | Insufficient Data | — | 0 | 0 | — |
| Winter Weather | Insufficient Data | — | 0 | 0 | — |
| Ice Storm | Not Applicable | — | — | — | — |
| Cold Wave | Insufficient Data | — | — | — | — |
| Lightning | Insufficient Data | — | 0 | 0 | — |
| Drought | Insufficient Data | — | 0 | 0 | — |
| Landslide | Insufficient Data | — | 0 | 0 | — |
| Avalanche | Not Applicable | — | — | — | — |
| Tsunami | Insufficient Data | — | — | — | — |
| Volcanic Activity | Insufficient Data | — | — | — | — |
Scores are 0–100 percentiles relative to all US counties — higher means more exposed, not that a disaster is likely this year. Event counts: NOAA Storm Events 2016–2026; earthquake counts from USGS ComCat (M3.0+, 1996–2026). See the methodology page for details.
Community vulnerability
Social vulnerability data is not available for St. Thomas Island.
Future risk outlook
Wildfire, flood, and heat projections are pending data availability. See the data page for status.
Nearby counties
Frequently asked questions
Has St. Thomas Island received federal disaster declarations?
Yes. St. Thomas Island has received 28 federal disaster declarations since 1971, including declarations in 2025. The most common disaster type on record is hurricane (17 declarations).
Has St. Thomas Island had any FEMA disaster declarations in 2024, 2025, or 2026?
Yes. Recent federal disaster declarations for St. Thomas Island include Tropical Storm Ernesto (2025), Tropical Storm Ernesto (2024). See the declarations table above for the full history since 1971.