Natural Disaster Risk in San Antonio, TX
2026 Risk Report — Flood, Tornado, Earthquake, Wildfire, Hurricane — Powered by FEMA, NOAA, USGS
Overall Risk Summary — San Antonio
Flood Risk — San Antonio
San Antonio has a flood risk score of 65/100, classified as High.
This score is derived from FEMA's National Flood Insurance Program (NFIP) claims data, flood zone designations, and NOAA precipitation records.
Tornado Risk — San Antonio
Tornado risk score: 52/100 — Moderate
Based on NOAA Storm Events Database historical tornado tracks and frequency data.
Earthquake Risk — San Antonio
Earthquake risk score: 15/100 — Very Low
Based on USGS National Seismic Hazard Model and historical seismic event data.
Wildfire Risk — San Antonio
Wildfire risk score: 55/100 — Moderate
Based on USDA Forest Service wildfire risk data and historical fire perimeter records.
Hurricane Risk — San Antonio
Hurricane risk score: 42/100 — Moderate
Based on NOAA historical hurricane track data and coastal storm surge modeling.
What This Means for Home Insurance in San Antonio
Standard homeowners policies do not cover flood damage. Properties in FEMA flood zones may be required to purchase separate NFIP coverage. Flood insurance is strongly recommended in this area.
Earthquake damage is excluded from standard homeowners policies. A separate earthquake rider or policy is required.
Homeowners insurance typically covers wind and fire damage, but high-risk areas may see coverage restrictions or higher premiums.
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Recent Significant Events — San Antonio
| Date | Hazard | Description | Fatalities | Source |
|---|---|---|---|---|
| 1998-10-17 | flood | Flash flooding kills 31 people in the San Antonio area | 31 | NOAA |
Frequently Asked Questions — San Antonio
Is San Antonio in a flood zone?
San Antonio has a flood risk score of 65/100, which is considered High. Check the FEMA Flood Map Service Center for specific parcel-level flood zone designations.
Does San Antonio get tornadoes?
San Antonio has a tornado risk score of 52/100. This area has experienced tornadoes historically and residents should have a preparedness plan.
What is the earthquake risk in San Antonio?
San Antonio has an earthquake risk score of 15/100 (Very Low). This is based on USGS seismic hazard assessments and historical earthquake data.
Is San Antonio at risk for wildfires?
San Antonio's wildfire risk score is 55/100 (Moderate). This reflects proximity to wildland-urban interface areas and historical fire data.
How does natural disaster risk affect home insurance in San Antonio?
Areas with higher flood, earthquake, or wildfire scores typically see higher home insurance premiums. Standard homeowners insurance does not cover floods — a separate NFIP or private flood policy is required. Earthquake coverage also requires a separate rider or policy.