City vs city
Columbia vs Hanahan, SC
Hanahan currently scores 6 points higher overall than Columbia, with the largest gap in wind.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Columbia: 50/100 · Hanahan: 56/100
Hanahan is 6 points higher.
Flood
Columbia: 27/100 · Hanahan: 39/100
Hanahan is 12 points higher.
Columbia: FEMA NFHL flood zones: 4 features intersect this tile.
Hanahan: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Columbia: 24/100 · Hanahan: 48/100
Hanahan is 24 points higher.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Hanahan: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 72/100 · Hanahan: 56/100
Columbia is 16 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Hanahan: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 42/100 · Hanahan: 27/100
Columbia is 15 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Hanahan: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 84/100 · Hanahan: 100/100
Hanahan is 16 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
Hanahan: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Hanahan: 83/100
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Hanahan: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Columbia: 73/100 · Hanahan: 72/100
Columbia is 1 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Hanahan: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Columbia: 26/100 · Hanahan: 26/100
No gap.
Columbia: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Hanahan: Air quality signal derived from the latest EPA AirNow combined AQI grid.